Changes

==Summarising Report Data==__NOEDITSECTION__In addition to displaying report details in an iReport template, the iReport Designer allows creating summaries or calculations of data returned in the report. These can take the form of totals, sums, and counts (stored in variables), or more complicated data summaries such as crosstabs or charts. Because summarizing data necessarily depends on multiple records, data summaries must exist in bands ''after'' the Detail band such as the Summary band, Footer band, or Group Footer bands. ===Adding a Footer or Summary Section to the Report===__NOEDITSECTION__

===Displaying Counts===__NOEDITSECTION__

<li>From the '''ViewReport Inspector''' menu, select '''Variables'''.</li>

[[Image:iRep22.png|center|500px|''Figure 22. REPORT_COUNT element in summary section'']]

''Figure 22. REPORT_COUNT element in summary section''

<olstart="4">

{{note|It may be helpful to add a text label beside any counts that you add to the report to identify the value. To add a text label, click drag the static text element [[Image:iRepText.png]] iconfrom the '''Palette''' pane. }}

iReport allows you to display the total of a particular attribute in the report. This is done by creating a variable to store the total value (see [[Modify an iReport Template#Adding a Variable to an iReport Template| Adding a Variable to an iReport]]).

<li>From the Library pane, click [[Image:iRepTotal.png]].</li></ol> {{note|If the Library pane is not displayed, display it by doing the following:<ol><li>From the '''ViewReport Inspector''' menupane, select choose '''Docking PanesVariables'''.</li><li>From the '''Docking Panes''' menu, select '''Library'''.</li></ol>}} <ol start="3"><li>Drag and drag the [[Image:iRepTotal.png]] variable to the footer or summary section of the report. If you drag it to the footer, the total for the values in the group will be calculated. If you drag it to the summary, the total for all values will be calculated.</li>:A window displays to allow you to select the object to sum.</ol> [[Image:iRep23.png|center|500px|''Figure 23. Window to select object to sum'']]<div align="center">''Figure 23. Window to select object to sum''</div> <ol><li>Double-click ''Fields''.</li><li>Click the name of the attribute that you would like to sum.</li><li>Click the '''OK''' button.</li>

===Creating Custom Variables===__NOEDITSECTION__In addition to the built-in functions to calculate the number of records and the sum of a field, iReport also allows you to define a other types of variablecalculations. A variable is a named object that stores the result of a calculation. iReport allows you to define new variables and how those variables should be calculated. For example, you may define a variable that calculates the average for a particular field such as the area size. Or, you may wish to display the maximum value of a field. In these situations, you may define a custom variable.

<ol><li>From # Follow the '''View''' menu, select '''Variables'''.</li><li>Click the '''New''' button.</li>:The Add/modify variable window displays.</ol> steps to [[Image:iRep24.pngModify an iReport Template#Adding a Variable to an iReport Template|center|500px|''Figure 24. Add/modify add a variable window''to an iReport]]<div align="center">''Figure 24. Add/modify variable window''</div> <ol start="3"><li>In the '''Variable Name''' field, enter a name for the variable. You should provide a name that is meaningful and indicative of what the value returns.</li><li># From the '''Variable Class Calculation Type''' list, select the data type of the resulting value. The variable class type will depend on the field that you are using in the calculation.</li></ol> {{note|To determine the class type of a field:<ol><li>Right-click the field element in the report pane.</li><li>Select '''Properties'''.</li><li>Select the '''Text Field''' tab.</li>:The class type will be displayed in the '''Text Field Expression Class''' field. </ol>}} <ol start="5"><li>From the '''Calculation Type''' listpane, select the calculation that you would like to perform.</li></ol>

| align="center" colspan="2" | '''Table 4. Calculation types'''

<ol start="63">

| align="center" colspan="2" | '''Table 5. Reset Types'''

<ol start="74">

<ol start="85"><li>From the '''Increment Type''' list, select the increment at which the value will need to be evaluated. It is useful when you want to calculate sub-totals.</li><li>From the '''Increment Group''' list, select the group at which the variable will be incremented.</li><li>The '''Variable Expression''' field specifies the expression that will be provided to the variable. Typically, this will be the value of a field in the report. To specify a field in the report:</li><ol type="a"><li>Click the [[Image:iRepEditor.png]] button that is displayed beside edit the '''Variable Expression''' field.</li>[[Image:The Expression editor window displaysIReport VariableAdd5.<li>From the Objects and expressions tab, select png|center|500px|''Variable Expression Editor'Fields''' from the left pane.]]</lidiv align="center"><li>From the middle pane at the bottom of the Expression editor window, double-click the name of the field that you would like to use in the calculation.</li><li>Click the '''Apply''' button.</li>:The Expression editor window closes. The Add/modify variable window displays the selected field in the Variable Expression field. <li>Click the '''OKEditor''' button.</lidiv>:The Add/modify variable window closes and the variable that you just added is listed as a variable in the Library pane.</olli>

{{note|If In addition to the summary functions available on the Library pane is not displayedvariable, display it by doing specific expressions can be used in the followingExpression Editor to define values. For example:<ol>{| class="wikitable" width="600" align="center"<li>From the |-| align="center" colspan="2" | '''ViewExpression Operations''' menu, select |-| width="150pt" | '''Docking PanesOperation'''.</li><li>From the | width="450pt" | '''Docking Panes''' menu, select '''LibraryExpression'''|-| Division || $F{areaSize}/$V{REPORT_COUNT}|-| Addition || $F{areaSize} + 500.</li>0|-| Subtraction || $F{areaSize} - $P{ClearedArea}|-| Multiplication || $F{areaSize} * $V{REPORT_COUNT}|-</ol>| Concatenation (string only)|| $F{localId} + $P{LocationName}|}

???In addition to summary variables, iReport provides the capability to build crosstab tables that display data in a grid for easy analysis and summary. Crosstabs allow you to choose data rows, columns, and the variable to be measured and then automatically produce a grid of results for display in a chart. As with other summary variables Crosstabs are generally used in the '''Summary Band''' in a report.  To create a Crosstab:# In the '''Palette''' pane, drag a '''Crosstab''' item to the Summary Band of the report.# The Crosstab wizard displays#: [[Image:IReport Crosstab1.png|center|500px|''Crosstab wizard'']]<div align="center">''Crosstab wizard''</div># Select the '''Field''' to use in the '''Row''' of the Crosstab grid.#: [[Image:IReport Crosstab2.png|center|500px|''Crosstab wizard'']]<div align="center">''Crosstab wizard''</div># Select the '''Field''' to use in the '''Column''' of the Crosstab grid.#: [[Image:IReport Crosstab3.png|center|500px|''Crosstab wizard'']]<div align="center">''Crosstab wizard''</div># Select the '''Field''' or '''Variable''' to use to represent the data in the grid. Typically this is a numeric field (e.g. areaSize) or if a count of the records is desired, the ''REPORT_COUNT'' variable.#: [[Image:IReport Crosstab4.png|center|500px|''Crosstab wizard'']]<div align="center">''Crosstab wizard''</div># Finalise the Crosstab display.#: [[Image:IReport Crosstab5.png|center|500px|''Crosstab wizard'']]<div align="center">''Crosstab wizard''</div># The Crosstab displays.#: [[Image:IReport Crosstab6.png|center|500px|''Crosstab wizard'']]<div align="center">''Crosstab wizard''</div> The report can now be run or additional adjustments to the report can be made including resizing columns and rows, number formatting, or display adjustments.[[Image:IReport Crosstab7.png|center|500px|''Crosstab Preview'']]<div align="center">''Example Crosstab Preview''</div> 

*#At least one grouping. The report groupings are used by iReport to determine what fields may be plotted. See [[Modify an iReport Template|Modify an iReport Template]] for more information on [[Modify an iReport Template#Grouping|grouping]].*#At least one variable that contains a calculation. This calculation may be a count, total, or other custom calculation. These calculated variables define the size of the chart segment. The '''Reset type''' of this calculation should be set to '''Group''' and use the report grouping defined in #1. See [[Modify_an_iReport_Template|Modify an iReport Template]] for more information on [[Modify_an_iReport_Template#To_add_a_variable_manually|adding variables]].

{{note|The sample report ''====Add a Pie Chart Sample.jrxm l''in the <''iReport Installation Directory''>\iReports_IMSMA\IMSMA reports directory provides an example of a report that includes a pie chart.}}====__NOEDITSECTION__

<ol><li>#Create a report which groups the results by the attribute on which you would like to base your chart(e.g. ''status'').</li><li>After creating #Ensure that the report, you should add a footer for the attribute Summary Band is available on which the results will be groupediReport template canvas. This footer will be used #[[Modify_an_iReport_Template#Adding a Variable to an iReport Template|Create a Variable]] to display contain the total for the group that will subsequently values to be used displayed in the pie chart(e.g. To add a group footer:</li><ol type="a"><li>From the ''SUM_areaSize_byStatus'View'). This variable should be based on a numeric field (e.g. '' menu, select areaSize'') and should have the 'Bands''Reset type'.</li>:The <FileName> bands… window displays. <li>Select <''GroupAttributeset to ''>Footer from the left pane where 'Group'GroupAttribute'' is and the name of group selected set to the attribute on which field you wish to create the results will be groupedchart from'' (e.g. For example, if you are creating a report on land and group the results by the priority, the name of the band would be ''priorityFooterstatus'').</li><li>In #Select the right pane, enter a numeric value in the Band Height field. You may adjust the height of the summary.</li><li>Click '''Chart''' option from the '''ApplyPalette''' button.</li></ol><li>Add a summary section pane and drag it to the report.</li><li>Click the [[Image:iRepBarChart.png]] icon.</li><li>In the summary section '''Summary Band''' of the report, hold down the mouse button and drag the cursor template to form start the rectangle which will contain the chart.</li>:A window of the various chart options displays'''Chart Wizard'''.<li>#Select one of the pie chart options.</li></ol> #:[[Image:iRep26iReport Charts1.png|center|500px|''Figure 26. Pie chart Chart options'']]<div align="center">''Figure 26. Pie chart Chart options''</div>#Choose Main report dataset.#:[[Image:iReport Charts2.png|center|500px|''Chart options'']]<ol startdiv align="7center"><li>Click the '''OK'Chart options'' button.</lidiv><li>Right-click anywhere on # The next step is to provide the correct data for the chartto use.</li><li>Select the Pie Charts require a '''Chart Propertiesunique identifier''' option.</li><li>From the Chart Properties window, select the Chart Data tab.</li><li>From the Chart Data tab, select the Details tab.</li><li>The Section Value tab should be selected by default. If it is not, select it.</li><li>The and a '''Key Expressionnumeric''' defines value where the various slices of the pie chart. This will typically be each unique value for an attribute. For example, if identifier is the chart were field to contain group the total area size of land with a particular priority, the Key Expression would return the unique values for priority data by (i.e.g., Low, Medium, or Highthe names of the wedges). To enter and numeric value is the key expression valueto sum. #:</li><ol type="a"><li>Click the [[Image:iRepEditoriReport Charts3.png|center|500px|''Chart options'']] icon that is displayed beside the Key Expression field.<div align="center">''Chart options''</lidiv>:The # To select the '''unique value''' choose the '''Expression editor window displays.<li>From ''' button and '''choose the bottom pane, double-click ''field'' the name of the attribute that contains the data report is grouped by''' (e.g. ''status''). Note that you would like to include charts in iReport will fail if the chart.</li>:The expression to represent the attribute displays in the top pane'''unique value''' is null.<li>In order to account for null values, you will need to modify the expression so that null values are grouped into their own group. The expression should be modified to include the bolded text below. You should replace attribute with the name of the attribute that you selected in step b above.</li> #:'''$F{''attribute''status} '''!== null ? "N/A" : $F{status}''attribute''} #:[[Image: "Unknown"iReport Charts5.png|center|500px|''Set Unique Value'']]<lidiv align="center">Click the '''Apply'Set Unique Value'' button.</lidiv></ol><li>The #Next, select the '''Value Expressionnumeric value''' field that contains the expression that returns the desired numeric value data for the keychart. For example, it may '''Note: This should always be the total land size of high priority landvariable created in step 3 above''' (e.g. ''SUM_areaSize_byStatus'').</li><ol type="a"><li>Click the #:[[Image:iRepEditoriReport Charts6.png|center|500px|''Select the desired numeric variable'']] icon that is displayed beside <div align="center">''Select the Value Expression field.desired numeric variable''</lidiv>:The Expression editor window displays.<li>From the Objects and expressions tab, select #Choose '''VariablesNext''' from the left pane.</li><li>From the middle pane at the bottom of the Expression editor window, double-click the name of the variable that was created to store the total#:[[Image:iReport Charts7.png|center|500px|''Chart Wizard Completed'']]</li><lidiv align="center">Click the ''Chart Wizard Completed'Apply''' button.</lidiv></ol><li>The # Choose '''Label ExpressionFinish''' field contains the expression that is used to determine the label for the segment of the pie chart. Because this expression will most likely be the same as the one used in the '''Key Expression''', you can copy the expression from the Key Expression field and paste it into the '''Label Expression''' field.</li><li>The following figure is an example of iReport template displays with the Chart Properties window for a report that contains a pie chart which graphs the total area size of land based on their priority.</li> </ol> #:[[Image:iRep27iReport Charts8.png|center|500px|''Figure 27. iReport displays with Chart Properties'']]<div align="center">''Figure 27. iReport displays with Chart Properties''</div># The report can now be previewed to ensure it is functioning as expected.#:[[Image:iReport ChartsPreview.png|center|500px|''Preview with Chart'']]<ol startdiv align="17center"><li>Click the '''Close'Preview with chart'' button</lidiv>:The ====Modify a Pie Chart Properties window closes.====__NOEDITSECTION__<li>Save the report by either clicking the iconOnce a chart has been created in iReport Designer, or its properties can be edited by selecting the '''SaveChart Data''' option from on the '''File''' right click menuand adjusting the values and properties.</li></ol>

Below To modify a chart:# Right click on the chart in iReport Designer and select '''Chart Data''' from the menu.# The Chart details window displays.#: [[Image:IReport ChartData1.png|center|500px|''Chart Data Properties'']]<div align="center">''Chart Data Properties''</div># To edit the main properties of the chart, select the '''Details tab'''. Additionally, this screen can be used to edit the reset type of the chart which is relevant if the chart is an example displayed on a band other than the summary band.# The '''Chart Details''' window displays.#: [[Image:IReport ChartData2.png|center|500px|''Chart Data Properties'']]<div align="center">''Chart Data Properties''</div># In this window, the basic properties of a report template the chart that totals were established in the Chart Wizard can be edited. These include:#* '''Key Expression''': the field used to group data for charting purposes. To change the field, simply select another field. '''Note:''' The field must be used in the creation of the variable used in the value expression or the results will be incorrect.#* '''Value Expression''': the variable used to store the data to be displayed in the chart. If changes are made this value it is recommended to edit the variable properties as well.#* '''Label Expression''': the area size of land by priorityused to define the labels for the chart. Any valid expression can be used here. See [[Summarize iReport Template Data#Variable Expressions|Variable Expressions]] for more details.

{{note|The sample report ''====Add a Bar Chart Sample.jrxm l''in the <iReport Installation Directory>\iReports_IMSMA\IMSMA reports directory provides an example of a report that includes a bar chart.}}====__NOEDITSECTION__

<ol><li>#Create a report which groups the results by the attribute on which you would like to base your chart(e.g.</li>''status'')<li>After creating #Ensure that the report, you should add a footer for the attribute Summary Band is available on which the results will be groupediReport template canvas. This footer will be used #[[Modify_an_iReport_Template#Adding a Variable to an iReport Template|Create a Variable]] to display contain the total for the group that will subsequently values to be used displayed in the pie chart(e.g. ''SUM_areaSize_byStatus''). To add This variable should be based on a group footer:</li><ol type="a"><li>From numeric field (e.g. ''areaSize'') and should have the '''ViewReset type''' menu, select set to '''Group''Bands'and the group selected set to the field you wish to create the chart from''(e.g.</li>:The <FileName> bands… window displays''status''). <li>#Select <the '''GroupAttributeChart'''>Footer option from the left pane where ''GroupAttribute'Palette''' is the name of the attribute on which the results will be grouped. For example, if you are creating a report on land pane and group drag it to the results by the priority, the name of the band would be ''priorityFooter'Summary Band'''.</li><li>In the right pane, enter a numeric value in the Band Height field. You may adjust the height of the summary</li><li>Click report template to start the '''ApplyChart Wizard''' button.</li></ol><li>Add a summary section to #Select one of the reportbar chart options.</li><li>Click the #:[[Image:iRepBarChartIReport BarChart.png|center|500px|''Chart options'']] icon.<div align="center">''Chart options''</lidiv><li>In the summary section of the #Choose Main report, hold down the mouse button and drag the cursor to form the rectangle which will contain the chartdataset.</li>#:A window of the various chart [[Image:IReport BarChart_Step1.png|center|500px|''Chart options displays.'']]<lidiv align="center">Select one of the bar chart ''Chart options.''</lidiv><li>Click the # Provide a '''OKSeries Expression''' button.</li><li>Right-click anywhere on the chart.</li><li>Select the ''('Chart Properties'optional'' option).</li> <li>From the Chart Properties window, select the #:[[Image:iReport Chart Data tabBar1.png|center|500px|''Series Expression'']]</li><li>From the Chart Data tab, select the Details tab.</li><lidiv align="center">Click the ''Series Expression'Add''' button.</lidiv>:The Chart Properties window displays. By default, the Data tab should be selected. <li># The Series Expression allows you to define an added level of detail to your bar chart(if desired). To enter select the series expression value:</li><ol type="a"><li>Click '''Series''' choose the [[Image:iRepEditor.png]] icon that is displayed beside the Key Expression field.</li>:The '''Expression editor window displays.<li>From the bottom pane, double-click the name ''' button and '''choose one of the attribute that contains ''fields'' the data report is grouped by''' (e.g. ''status''). Note that you would like to include charts in iReport will fail if the chart.</li>:The expression to represent the attribute displays in the top pane'''Series''' value is null.<li>In order to account for null values, you will need to modify the expression so that null values are grouped into their own group. The expression should be modified to include the bolded text below. You should replace attribute with the field the name of the attribute field that you selected in step b above.</li>#: '''$F{''attribute''status} '''!== null ? "N/A" : $F{attributestatus} '''#:[[Image: "Unknown"iReport Charts5.png|center|500px|''Set Series Value'']]<lidiv align="center">Click the '''ApplySet Series Value''' button.</li></oldiv>#: The expression that you enter in the Series Expression field will vary based on how you want the horizontal axis to appear:#*If you would like the horizontal axis of the bar chart to reflect a single attribute such as the chart displayed below, the Series Expression will be the same as the Category expression.#:[[Image:iRep30.png|center|500px|''Bar chart –Single attribute y-axis'']]<div align="center">''Bar chart –Single attribute y-axis''</div>#*If you would like the horizontal axis of the bar chart to reflect the values of an additional attribute, the Series Expression would be the expression for the secondary level of detail. In the example shown below, the x-axis reflects the land priorities (e.g., Low, Medium, or High). In addition to displaying the priority, the bars of the chart use a different colour to reflect those land which block water access (red) vs. those that do not block the water (blue). #:[[Image:iRep31.png|center|500px|''Bar chart with different series expression'']]<div align="center">''Bar chart with different series Expression''</div>#* '''Finally, the Series value can be left blank if desired.'''# The next step is to provide the correct data for the chart to use. Bar charts require a '''category expression''' and a '''value expression''' where the value expression is a field to group the data by (i.e. the names of the X axis) and value expression is the value to sum. #:[[Image:iReport Chart Bar2.png|center|500px|''Category and Values'']]<div align="center">''Category and Values''</div># To select the '''category expression''' choose the '''Expression editor''' button and '''choose one of the ''fields'' the report is grouped by''' (e.g. ''status''). Note that charts in iReport will fail if the '''category expression''' is null. In order to account for null values, you will need to modify the expression so that null values are grouped into their own group. The expression should be modified to include the bolded text below. You should replace field with the field that you selected above.#: '''$F{status} == null ? "N/A" : $F{status}'''#:[[Image:iReport Charts5.png|center|500px|''Set Category Expression'']]<div align="center">''Set Category Expression''</div>#Next, select the '''value expression''' that contains the desired numeric data for the chart. '''Note: This should always be one of the variables created in step 3 above''' (e.g. ''SUM_status_byAreaSize''). #:[[Image:iReport Charts6.png|center|500px|''Select the desired value expression'']]<div align="center">''Select the desired value expression''</div># Choose '''Finish''' and the iReport template displays with the Chart.#:[[Image:iReport Chart Bar3.png|center|500px|''iReport displays with Chart'']]<div align="center">''iReport displays with Chart''</div># The report can now be previewed to ensure it is functioning as expected.#:[[Image:iReport Chart BarPreview.png|center|500px|''Preview with Chart'']]<div align="center">''Preview with chart''</oldiv>

[[Image:iRep30.png|center|500px|''Figure 30. ====Modify a Bar Chart====__NOEDITSECTION__Once a bar chart –Single attribute y-axishas been created in iReport Designer, its properties can be edited by selecting the '']]<div align="center">'Chart Data'Figure 30. Bar chart –Single attribute y-axis''</div>option on the right click menu and adjusting the values and properties.

<ol>*If you would like the horizontal axis of the bar chart to reflect the values of an additional attribute, the Series Expression would be the expression for the secondary level of detail. In the example shown below, the x-axis reflects the land priorities (e.g., Low, Medium, or High). In addition to displaying the priority, the bars of the chart use To modify a different colour to reflect those land which block water access (red) vs. those that do not block the water (blue). </ol> [[Image:iRep31.png|center|500px|''Figure 31. Bar chart with different series expression'']]<div align="center">''Figure 31. Bar chart with different series expression''</div> <ol>The Chart Properties window for this bar chart is shown below. Notice that the series expression and category expression differ.</ol> [[Image:iRep32.png|center|500px|''Figure 32. Chart Properties – Different series and category expressions'']]<div align="center">''Figure 32. Chart Properties – Different series and category expressions''</div> <ol>*If you selected one of the stacked bar chart options, the series expression will be used to determine the segments of each bar. In the following figure, the series expression creates red and blue segments in each bar to indicate whether or not water access is blocked.</ol> [[Image:iRep33.png|center|500px|''Figure 33. Stacked bar chart'']]<div align="center">''Figure 33. Stacked bar chart''</div> <ol start="14"><li>The Category Expression is the major grouping of the horizontal axis. To enter the category expression:</li><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that is displayed beside the Category expression field.</li>:The Expression editor window displays.<li>From the bottom pane, double-# Right click the name of the attribute that contains the data that you would like to include in on the chart.</li>:The expression to represent the attribute displays in the top pane.<li>In order to account for null values, you will need to modify the expression so that null values are grouped into their own group. The expression should be modified to include the bolded text below. You should replace attribute with the name of the attribute that you selected in step b above.</li>$F{''attribute''} '''!= null ? $F{attribute} : "Unknown"'''<li>Click the '''Apply''' button.</li></ol><li>The '''Value Expression''' field contains the expression that returns the numeric value for the key.</li><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that is displayed beside the Value Expression field.</li>:The Expression editor window displays.<li>From the Objects iReport Designer and expressions tab, select '''Variables''' from the left pane.</li><li>From the middle pane at the bottom of the Expression editor window, double-click the name of the variable that was created to store the total.</li><li>Click the '''Apply''' button.</li></ol><li>Click the '''OK''' button.</li>:The Chart Properties window closes.<li>Click the '''Close''' button.</li>:The Chart Properties window closes.<li>Save the report by either clicking the [[Image:iRepSave.png]] icon, or by selecting the 'Data''Save''' option from the '''File''' menu.</li></ol> ===Grouped Bar # The Chart===__NOEDITSECTION__The horizontal axis of the bar charts discussed in the previous section compared the values of a single variable. For example, the bar chart below compares the number of different activity typesData properties display.  [[Image:iRep34.png|center|500px|''Figure 34. Bar chart comparing values of a single variable'']]<div align="center">''Figure 34. Bar chart comparing values of a single variable''</div> In this section, you will learn how to create a grouped bar chart. A grouped bar chart compares # To edit the values main properties of a single variable in one group to the same variables in another group. In the example below, the grouped bar chart still compares the number of activity types. However, select the chart also compares the number of activity types between the districts. The number of activity types (clearance, impact survey, technical survey, and road clearance) are represented by the different bar colours as indicated in the legend. The coloured bars are clustered together based on their district. The first cluster of bars shows the number of activity in the Bolikon district. The second cluster of bars shows the number of activities in the Waltern district. [[Image:iRep35.png|center|500px|''Figure 35. Grouped bar chart comparing values of a single variable'Details tab']]<div align="center">''Figure 35. Grouped bar chart comparing values of a single variable''</div> The two main differences between adding a bar chart and a grouped bar chart are:*The grouped bar chart requires that you specify at least two groupings for the report. *The key expression and the category expression will differ; whereasAdditionally, for a bar chart, the value for these expressions is the same.  To add a grouped bar chart this screen can be used to edit the report:<ol><li>Create a report which groups the results by the fields that will be represented on the horizontal axis reset type of the chart.</li></ol> {{note|For a grouped bar chart, you will need to specify at least two groupings.}} <ol start="2"><li>Add any variables that you may need to calculate the value that you would like to show on the chart.</li><li>If you would like to display the calculated variable for each group, you should add the footer for the field on which the results will be grouped. This footer will be used to display the variable for the group that will subsequently be used in is relevant if the chart. To add a group footer:</li><ol type="a"><li>From the '''View''' menu, select '''Bands'''.</li>:The <FileName> bands… window displays. <li>Select <''GroupFieldName''>Footer from the left pane where ''GroupFieldNameis'' the name of the field is displayed on which the results will be grouped. For example, if you are creating a report on land and group the results by the priority, the name of the band would be ''priorityFooter''.</li><li>In the right pane, enter a numeric value in the Band Height field. You may adjust the height of other than the summaryband.</li><li>Click the # The '''ApplyChart Details''' button.</li><li>Add a summary section to the report.</li></ol><li>Click the [[Image:iRepBarChart.png]] icon.</li><li>In the summary section of the report, hold down the mouse button and drag the cursor to form the rectangle which will contain the chart.</li>:A window of the various chart options displays.<li>Select one of the bar chart options.</li></ol> #: [[Image:iRep36IReport Chart Bar ChartData1.png|center|500px|''Figure 36. Bar chart optionsChart Data Properties'']]<div align="center">''Figure 36. Bar chart options''</div> <ol start="8"><li>Click the '''OK''' button.</li><li>Right-click anywhere on the chart.</li><li>select the '''Chart Data Properties''' option.</lidiv><li>From the Chart Properties window, select the Chart Data tab.</li><li>From the Chart Data tab, select the Details tab.</li><li>Click # For Bar Charts this presents the '''AddCategory Series''' buttonchooser.</li>:The Chart Properties window displays. By default, the Data tab should Typically there will be only one or two series to choose from here though more can be selectedadded at this point. <li>For a grouped bar chart, Select the series expression contains the field whose distinct values you would like to show via different colours on the bar chart.</li></ol> [[Image:iRep37.png|center|500px|''Figure 37. Bar chart series expressionmodify and choose '']]<div align="center">'Modify'Figure 37. Bar chart series expression''</div> To enter the series expression:<ol start="15"><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that is displayed beside the Key Expression field.</li>:# The Expression editor Chart Data properties window displays.<li>From the bottom pane, double-click the name of the field that contains the data that you would like to include in the chart.</li>will display#:The expression to represent the field displays in the top pane.<li>Click the '''Apply''' button.</li></ol><li>The Category Expression is the field by which the series expression is grouped together.</li></ol> [[Image:iRep38IReport Chart Bar ChartData2.png|center|500px|''Figure 38. Bar chart category expressionChart Data Properties'']]<div align="center">''Figure 38. Bar chart category expressionChart Data Properties''</div> To enter the category expression:<ol start="16"><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that is displayed beside the Category expression field.</li>:The Expression editor # In this window displays.<li>From the bottom pane, double-click the name basic properties of the field that contains the data bar chart that you would like to include were established in the chart.</li>:The expression to represent the field displays in the top pane.<li>Click the '''Apply''' button.</li></ol><li>The '''Value Expression''' field contains the variable that returns the numeric value that will Chart Wizard can be represented on the chartedited.</li> <ol type="a"><li>Click the [[ImageThese include:iRepEditor.png]] icon that is displayed beside the Value Expression field.</li>:The Expression editor window displays.<li>From the Objects and expressions tab, select #*'''Variables''' from the left pane.</li><li>From the middle pane at the bottom of the Series Expression editor window, double-click the name of the variable that you would like to represent on the chart.</li><li>Click the '''Apply''' button.</li></ol><li>Click the '''OK''' button.</li>:The Chart Properties window closes.<li>Click the '''Close''' button.</li>:The Chart Properties window closes.<li>Save the report by either clicking the [[Image:iRepSave.png]] icon, or by selecting the Save option from the '''File''' menu.</li></ol> {{note|iReport requires you to save the report after adding or changing a chart.}} <ol start="20"><li>Click the [[Image:iRepCompile.png]] button to compile the report.</li><li>Click the [[Image:iRepRun.png]] button to execute the report.</li></ol> ===Stacked Bar Chart===__NOEDITSECTION__A stacked bar chart is similar to a grouped bar in that it allows you to represent two different fields on the chart. The key difference is that the stacked bar chart layers the values of the series expression (the field represented in the legend) allowing you to easily compare the categories to one another.  [[Image:iRep39.png|center|500px|''Figure 39. Stacked bar chart'']]<div align="center">''Figure 39. Stacked bar chart''</div> To add a grouped bar chart to the report:<ol><li>Create a report which groups the results by the fields that will be represented on the horizontal axis of the chart.</li></ol> {{note|For a stacked bar chart, you will need to specify at least two groupings.}} <ol start="2"><li>Add any variables that you may need to calculate the value that you would like to show on the chart.</li><li>If you would like to display the calculated variable for each group, you should add the footer for the field on which the results will be grouped. This footer will be used to display the variable first group data for the group that will subsequently be used in the chartcharting purposes. To add a group footer:</li><ol type="a"><li>From change the '''View''' menufield, simply select another field. '''Bands'''.</li>Note:The <FileName> bands… window displays. <li>Select <''GroupFieldName''>Footer from the left pane where ''GroupFieldName'' while this field is the name of the field on which the results will required it can be grouped. For example, if you are creating a report on land and group the results made blank or fixed by the priority, the name of the band would be ''priorityFooter''.</li> <li>In the right pane, enter being set to a numeric value in the '''Band Height''' field. You may adjust the height of the summary</li><li>Click the '''Apply''' button.</li></ol><li>Add a summary section to the report.</li><li>Click the [[Imageconstant such as:iRepBarChart.png]] icon.</li><li>In the summary section of the report, hold down the mouse button and drag the cursor to form the rectangle which will contain the chart.</li>:A window of the various chart options displays.<li>Select one of the stacked bar chart options.</li></ol> [[Image:iRep40.png|center|500px|''Figure 40. Stacked bar chart options'']]<div align="center">''Figure 40. Stacked bar chart options''</div> <ol start=or "8Blank"><li>Click the '''OK''' button.</li><li>Right-click anywhere on the chart.</li><li>Select the #*'''Chart Properties''' option.</li><li>From the Chart Properties window, select the Chart Data tab.</li><li>From the Chart Data tab, select the Details tab.</li.<li>Click the '''AddCategory Expression''' button.</li>:The Chart Properties window displays. By default, the Data tab should be selected. <li>For a stacked bar chart, the series expression contains the fields whose distinct value.</li> <li>For a grouped bar chart, the series expression contains the field whose distinct values you would like used to show via different colours on the bar chartgroup data for charting purposes. To enter the series expression:</li><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that is displayed beside change the Key Expression field.:The Expression editor window displays.</li><li>From the bottom pane, double-click the name of the field that contains the data that you would like to include in the chart.</li>:The expression to represent the simply select another field displays in the top pane.<li>Click the '''ApplyNote:''' button.</li></ol><li>The Category Expression is the field by which the series expression is grouped together. To enter must be used in the category expression:</li><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that is displayed beside the Category expression field.</vli>:The Expression editor window displays.<li>From the bottom pane, double-click the name creation of the field that contains the data that you would like to include variable used in the chart.</li>The value expression to represent or the field displays in the top paneresults will be incorrect.<li>Click the Apply button.</li></ol><li>The #* '''Value Expression''' field contains : the variable that returns used to store the numeric value that will data to be represented on displayed in the chart.</li><ol type="a"><li>Click the [[Image:iRepEditor.png]] icon that If changes are made this value it is displayed beside recommended to edit the Value Expression fieldvariable properties as well.</li>:The Expression editor window displays.<li>From the Objects and expressions tab, select '''Variables#* ''' from the left pane.</li><li>From the middle pane at the bottom of the Label Expression editor window, double-click the name of the variable that you would like to represent on the chart.</li><li>Click the '''Apply''' button.</li></ol><li>Click the '''OK''' button.</li>:The Chart Properties window closes.<li>Click the '''Close''' button.</li>:The Chart Properties window closes.<li>Save area used to define the report by either clicking labels for the [[Image:iRepSavechart.png]] icon, or by selecting the '''Save''' option from the '''File''' menuAny valid expression can be used here.</li> <li>Click the See [[Image:iRepCompile.pngSummarize iReport Template Data#Variable Expressions|Variable Expressions]] button to compile the reportfor more details.</li><li>Click the [[Image:iRepRun.png]] button to execute the report.</li></ol>

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