pca_motion: small helper function for compressing motion parameters using...

In UNCDEPENdLab/fmri.pipeline: Analysis of fMRI Data on HPC clusters

small helper function for compressing motion parameters using PCA

Description

small helper function for compressing motion parameters using PCA

Usage

pca_motion(motion_df, num_pcs = 3L, zscore = TRUE, verbose = FALSE)

Arguments

motion_df	volumes x motion parameters data frame for PCA compression
num_pcs	number of principal components to extract
zscore	whether to standardize motion parameters prior to PCA (this is a good idea)
verbose	whether to print the variance explained by PCs and the multiple correlations of among motion parameters

Value

A matrix of PCA-compressed motion regressors

UNCDEPENdLab/fmri.pipeline documentation built on April 3, 2025, 3:21 p.m.