Post-run Trend Decoration Dialog Box:
Statistics
Use the Statistics tab page to determine which statistics are recorded on the Trend Plot, and how they are calculated.
Calculated From
All Data |
Select this option to have statistics calculated from all data points. |
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Data in Viewed Range |
Select this option to have statistics recalculated as soon as the currently viewed time axis changes. |
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Control Chart (Data Set) |
Select this option to display a control chart based on a target and/or a first standard deviation (1s) value that you enter on the Trend Decoration: Data Set tab page. This option is useful when you have previously determined a target and/or a 1s value from an existing set of data. |
Tip:
If necessary, select Autoscale on the context menu to view all statistics lines on the trend plot.
Display
Mean or Target |
Displays a horizontal line at the Target value. Target is determined by the selected Calculated From option. If All Data or Data in Viewed Range is selected, Target is the mean of either all the data values or of the data values in the viewed range. If Control Chart (Data Set) is selected, Target is the value entered on the Trend Decoration: Data Set tab page. The line is labeled Target (All/Viewed/X-Chart:x), where x is the Target value. |
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1s (Mean or Target +/- 1 Std. Deviation) |
Displays two horizontal lines at the 1s level of significance (i.e., where there is a probability of 68.3% that a trend point will fall within the two lines). 1s is calculated based on the selected Calculated From option:
The lines are located at Target +/- 1 Standard Deviation and are labeled 1s(All/Viewed/X-Chart:x), where x is the value of the respective line. |
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2s (Mean or Target +/- 2 Std. Deviations): |
Displays two horizontal lines at the 2s level of significance (i.e., where there is a probability of 95.5% that a trend point will fall within the two lines). 2s is calculated based on the selected Calculated From option:
The lines are located at Target +/- 2 Standard Deviations and are labeled 2s(All/Viewed/X-Chart:x), where x is the value of the respective line. |
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3s (Mean or Target +/- 3 Std. Deviations): |
Displays two horizontal lines at the 3s level of significance (i.e., where there is a probability of 99.7% that a trend point will fall within the two lines). 3s is calculated and the lines are labeled in the same way the 2s lines are calculated and labeled (as described above). |
Font
The font label indicates the font used for statistics on the trend plot. Click Change… to change the size, font style, and the font.