2.4.5 Report files in histogram format
The report section of a report in histogram format displays the report details, histogram, and graph introductory-notes table. The following figure shows an example of a report file in histogram format.
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![[Figure]](GRAPHICS/SS05069A.GIF)
The following subsections describe the contents displayed in report files.
- Organization of this subsection
(1) Report details
The collection target server name, subresource names, and instance names are displayed as report details.
(2) Graph introductory-notes table
A graph introductory-notes table displays the legend for the display colors of the graph and the subresource or instance names. The value specified in Introductory-notes Table in the Graph Detail Setup window or the value set with the graph_legend_row key in the report definition file is used as the number of columns to be displayed. The maximum number of columns that can be displayed is 100. The default is 10.
(3) Graph
The number of data occurrences is displayed for equally divided intervals in a graph. This information can be displayed for a maximum of 8 types of data. Placing the mouse pointer over a bar in the graph displays the subresource name and instance name of that bar in a tooltip. In the tooltip, these names are displayed in the subresource-name (instance-name) format.
The following figure shows an example of a graph in histogram format.
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![[Figure]](GRAPHICS/SS05069B.GIF)
(a) Graph frame
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The vertical axis displays the number of data occurrences within each data interval. The bottom of the axis indicates the minimum value, and the top of the axis indicates the maximum value. The scale lines are positioned at 5 equidistant points between the top and the bottom of the vertical axis.
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The horizontal axis displays the data values. The left end of the axis indicates the minimum value, and the right end the maximum value.
(b) Data interval
The value of the data interval is the difference between the maximum value and minimum value divided by the number of data occurrences in the data interval. The number of data items in the data interval is specified in Report Setting in the Report Type Setup window. For details on Report Setting, see 4.9.5 Report Type Setup window.
(4) Statistics
The minimum value, maximum value, and average values can be output (as numeric values) for all subresources or data instances that are used to create a report. If the minimum value or maximum value is a fraction, it is rounded to the second decimal place. If that value is an integer, the decimal places .00 are added.
The settings for output of the above values are specified in the Statistics area of the Graph Detail Setup window or by using the report definition file. For details on Statistics, see 4.9.5(1) Graph Detail Setup window. For details on graph_statistics_info key, see 6.3.21(3) Details of the report conditions definition. Note that the above values are not output with the default settings.
The format of statistical information output to reports can be selected from four table formats. The statistical information is displayed in the selected format under the graph.