StatisticsHistogram Statistics

The Histogram Statistics tool generates a set of statistics based on a histogram tool.

Using the Histogram Statistics Tool

Drag a histogram tool onto the inputs page of the Histogram Statistics tool. 

When the Histogram Statistics tool is run the statistics for the histogram will be displayed in the tool's parameters page.

Setting the Parameters

The StartIndex is value that the Histogram Statistics tool will use as its lowest value when collecting data from the histogram.  The EndIndex is the highest value that will be collected from the histogram.  The Statistics tool will only use data whose values fall between the StartIndex and EndIndex.  If the EndIndex is set to -1 it will default to the highest recorded value.

Set the IsCircular setting to "1" when the highest value in the histogram is next to the lowest value.  If the histogram is not circular in this sense, set this setting to "0".

The Smoothing is the amount of smoothing applied to the histogram.

The Statistics

Mean: The average.

Mode: The highest peak.

MassMode: The area of the highest peak.

MassModeWG: 

Minimum: The smallest value found.

Maximum: The largest value found.

StdDev: The Standard Deviation.

Contrast: The difference between the max and min peaks.

Sum: The total area.

LightPeak: The highest value with a peak.

DarkPeak: The lowest value with a peak.

LightValley: The value of the valley to the right of the highest peak.

DarkValley: The value of the valley to the left of the highest peak.