Question
Hi Everyone, I have a 25 (subjects) x 68 (variables) matrix. I also have a variable called Age (25 x 1). Now, I would like to get the age-adjusted values of the 68 variables. Could someone teach me how to do that please? Thanks very much!
Expert Answer
Neeta Dsouza
PhD Expert
Answered Nov 20, 2025
zscore(X,flag,dim)
If flag is 0 (default), then zscore scales X using the sample standard deviation...
If flag is 1, then zscore scales X using the population standard deviation
zscore(X,flag,dim) standardizes X along dimension dim
Also, if you would like to use zscore functionality without the Statistics and Machine Learning Toolbox, the following answers discussion might help:
Also the "bsxfun" function can help you combine the two functionalities with bsxfun(@rdivide, bsxfun(@minus, Data, meanvalue), standard deviation value)
mean can be calculated using the "mean" function and standard deviation using "std"
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