In a histogram, cases are grouped into bins of equal width. A rectangle represents each bin, showing how many cases are in it. Control the width of the bins by dragging a bin edge or using the graph's inspector.
· Drop a numeric attribute on an axis and choose Histogram from the graph's pop-up menu.
You can change the vertical axis scale by choosing Frequency (the default), Relative Frequency, Relative Percentage, or Density from the Graph | Scale menu.
Split a histogram either by adding numeric attributes to the same axis or by dropping a categorical attribute on the other axis.
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