Basic Analysis and Graphing - SAS

Chapter 2 Performing Univariate Analysis 37
The Distribution Report
Resize Histogram Bars for Continuous Variables
Resize histogram bars for continuous variables by using the following:
• the Grabber (hand) tool
• the Set Bin Width option
• the Increment option
Use the Grabber Tool
The Grabber tool is a quick way to explore your data.
1. Select Tools > Grabber.
Note: (Windows only) To see the menu bar, you might need to hover over the bar below the window title.
You can also change this setting in File > Preferences > Windows Specific.
2. Place the grabber tool anywhere in the histogram.
3. Click and drag the histogram bars.
Think of each bar as a bin that holds a number of observations:
• Moving the hand to the left increases the bin width and combines intervals. The number of bars
decreases as the bar size increases.
• Moving the hand to the right decreases the bin width, producing more bars.
• Moving the hand up or down shifts the bin locations on the axis, which changes the contents and size of
each bin.
Use the Set Bin Width Option
The Set Bin Width option is a more precise way to set the width for all bars in a histogram. To use the Set
Bin Width option, from the red triangle menu for the variable, select Histogram Options > Set Bin Width.
Change the bin width value.
Use the Increment Option
The Increment option is another precise way to set the bar width. To use the Increment option,
double-click on the axis, and change the Increment value.
Highlight Bars and Select Rows
Clicking on a histogram bar highlights the bar and selects the corresponding rows in the data table. The
appropriate portions of all other graphical displays also highlight the selection. Figure 2.6 shows the results
of highlighting a bar in the height histogram. The corresponding rows are selected in the data table.
Note: To deselect histogram bars, press the CTRL key and click on the highlighted bars.