run

Import in python using from mcutils.scripts.function.normalize import run

mcutils.scripts.function.normalize.run(data, demean=True)[source]

Normalizes the functional MRI data

Parameters

  • data – (…, N) array of fMRI data with N timepoints

  • demean – if True demean the data as well as normalizing

Returns

(…, N) array of normalized and potentially demeaned data

Example matlab code from variance_normalize.m by Saad Jbabdi function yn = variance_normalise(y) % yn = variance_normalise(y) % y is TxN

addpath ~steve/matlab/groupPCA/ yn=y; [uu,ss,vv]=ss_svds(y,30); vv(abs(vv)<2.3*std(vv(:)))=0; stddevs=max(std(yn-uu*ss*vv’),0.001); yn=yn./repmat(stddevs,size(yn,1),1);