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The BOXPLOT Procedure |
symbol v=dot c=salmon; goptions ftext=swiss; axis1 minor=none color=black label=(angle=90 rotate=0); title 'Box Plot for Power Output'; proc boxplot data=turbine; plot kwatts*day / turnhlabel cframe = vligb cboxes = dagr cboxfill = ywh vaxis = axis1; run;
The labels on the horizontal axis in Figure 18.5 do not represent 20 consecutive days, but the box-and-whisker plots are evenly spaced (note that the TURNHLABEL option orients the horizontal axis labels vertically so there is room to display them all).
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In order to treat the group variable as continuous, you can specify the CONTINUOUS or HAXIS= option. Either option produces a box plot with a horizontal axis scaled for continuous group variable values.
The following statements produce the plot shown in Figure 18.6. Note that the values on the horizontal axis represent consecutive days. Box-and-whisker plots are not produced for days when no turbine data was collected. The TOTPANELS= option is specified to display the entire box plot on one panel.
symbol v=dot c=salmon; title 'Box Plot for Power Output'; axis1 minor=none color=black label=(angle=90 rotate=0); proc boxplot data=turbine; plot kwatts*day / turnhlabel cframe = vligb cboxes = dagr cboxfill = ywh totpanels = 1 vaxis = axis1 continuous; run;
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