Histogram Peak Statistics
The Histogram Peak Statistics tool generates a set of statistics based on the highest peak analyzed by a histogram tool.
Using the Histogram Peak Statistics Tool
Drag a histogram tool onto the inputs
page of the Histogram Peak Statistics tool.
When
the Histogram Peak Statistics tool is run the statistics for the
highest peak 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 Peak 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.
The Smoothing is the amount of smoothing applied to the histogram.
The PercentHeight
value on the tool's parameters page sets the size of the peak to be
measured. For example, if the PercentHeight is set to 75 then only
the top 25% of each peak will be analyzed.
The Statistics
Mean:
The average value within the peak.
Mode:
The highest point on the peak.
Mass: The area of the peak.
PeakMiddle: The center value of the entire range of the peak.
PeakMass:
Finds the area of the peak then determines where the center would be
based on the area, assuming the inclines on either side of the peak
were even.
PeakValley:
Ignores the PercentHeight and finds the valley on either side of the
peak and then gives the center value between the two valleys.
Minimum: The smallest value within the peak.
Maximum: The largest value within the peak.
Spread: The difference between the Minimum and Maximum values.
StartValley: The value of the valley before the peak (ignores PercentHeight).
EndValley: The value of the valley after the peak (ignores PercentHeight).