Histogram

A Histogram is a bar graph that shows how frequently data occur within certain ranges of intervals. The height of each bar gives the frequency in the respective interval.

To generate a histogram based on a layer, it is necessary to define the attribute and the number of intervals (slices).

It is accessible through:

    Layer  > Histogram...  
  1. Property  - select the numerical attribute to generate the histogram.
  2. Number of slices - select the number of intervals (slices) if the attribute is a number.
  3. Press OK to generate the histogram or Cancel to close the dialog.
  4. Graphic Style  - used to change color, title, X and Y labels, font style, grid and so on through the chart style interface.
It is also possible to interact with the histogram plotter area highlighting some data, zooming in or out. See the details on how to do that here.
Hint: If the attribute chosen is not numeric, all unique values are treat as intervals.