The Histogram window provides a histogram of the currently displayed data. For example, if Tac values are currently being displayed, the histogram plots these values for all displayed hits. The horizontal histogram scale maps directly into the colors of the hits in other windows.
A quick click on either scale will bring up the Histogram Scales window, allowing the X and Y scale limits to be entered using the keyboard. This feature is common to all XSNOED histogram windows. There is also a checkbox which allows the Y scale to be displayed in logarithmic form. Note that some histograms will ignore the entered value for the Y scale minimum since it can be fixed to zero.
Normally, the histogram Y scale is automatically adjusted according to the maximum bin
value, and the X scale is automatically set for some data types. Once the X or
Y scales have been changed manually, this auto-scaling is disabled. A quick click
in the plot area of the histogram restores the default auto-scaling behaviour.