Overview

The histogram is useful for examining the distribution of data sampled from a continuous variable. The range of the variable is divided into a certain number of subintervals or bins. The height of the bar in each bin is proportional to the number of data points that have values in that bin.

To create a histogram using the GUI

1. Open or create a data table.

   For details, see Creating a Data Table.

2. Make sure the data table window is the active window.
3. On the Graph menu, click Histogram.

   IML Studio displays the Histogram dialog box.

4. Select a numeric variable and click Set X.
   

   You can optionally select a numeric frequency variable and click Set Freq. The ith value of the frequency variable specifies the frequency of the ith value of the X variable.

5. Click OK.

For a discussion of the BY Variables and BY Options tabs, see BY Group Processing: Using BY Group Processing.