X-Stream Operator’s Manual
WM-OM-E Rev I 149
hist rms Histogram Root Mean Square
Definition:
The rms value of the values in a histogram.
Description:
The center value of each populated bin is squared and multiplied by the
population (height) of the bin. All results are summed and the total is divided by
the population of all the bins. The square root of the result is returned as hrms.
Example:
Using the histogram shown here, the value for hrms is:
hrms = = 2.87
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