The Bars control ()
is found in the control stack of the Histogram window.
It configures the common placement and calculation of the bars for
all the histogram layers displayed.
It has the following fields:
Bin Size
A scale for the width of bins that are shown on the screen.
There are two ways to specify this.
If the left-hand radio button is selected, the adjacent slider will
adjust the bin size, which is also affected by the actual width of
the plotting window in pixels. Slide the slider left to get narrower
bins or right to get wider ones.
If the right-hand radio button is selected, you can enter a numeric
value giving the actual width in data units of each bar
(for a logarithmic X axis this value is a factor).
Bin Phase
Controls where the horizontal zero point for binning is set.
For instance if your bin size is 1, it controls whether bins
boundaries are at 0, 1, 2, .. or 0.5, 1.5, 2.5, ... etc.
If the slider is at either end of the scale, there will be a bin
boundary at X=0 (linear X axis) or X=1 (logarithmic X axis).
Cumulative
If true, the bars plotted are calculated cumulatively;
each bin includes the counts from all previous bins.
Normalized
If true, the counts in each plotted histogram are normalised to
sum to a value of 1.