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Occasional Visitor
Posts: 1
Registered: ‎02-07-2019

Kurtosis and Skewness



I am trying to figure out the correct formula for kurtosis. I have already been using the formula for skewness as:

GLOBAL MEAN ( ((inputlayer) - mean) / SD) ** 3)


what would the kurtosis formula be?


Thanks in advance

Technical Evangelist
Posts: 812
Registered: ‎10-01-2015

Re: Kurtosis and Skewness

Hi bfred,


You can check out the bimodality model I provided in this thread:


It calculates skewness and kurtosis. This was my Reference for the formulae:





Ian Anderson
Chief Product Owner, Desktop Remote Sensing
Hexagon Geospatial