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Welch-Satterwhaite equation

version (983 Bytes) by Joris Meurs
Calculating the degrees of freedom according to the Welch-Satterthwaite equation


Updated 28 Mar 2016

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File name : 'WelchSatterthwaite.m'. This file can be used
for calculating the degrees of freedom for a
Student's t-distribution according to the Welch-Satterthwaite equation
Four input values : 'std1', 'st2', 'n1', 'n2'
One output value: 'df'
std1: Standard deviation of group 1
std2: Stanard deviation of group 2
n1: Number of arguments group 1
n2: Number of arguments group 2
df : Degrees of freedom
Developed by Joris Meurs BASc (2016)

Cite As

Joris Meurs (2020). Welch-Satterwhaite equation (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (1)

Rusty Burch

Thanks! Helpful. Suggest adding in the t-statistic calculation. t = mean1 - mean2/sqrt(etc)


Removed spelling error

Renamed title

MATLAB Release Compatibility
Created with R2014b
Compatible with any release
Platform Compatibility
Windows macOS Linux