Partition a design matrix into columns of interest and nuisance
partition(M, con.mat, method = c("beckmann", "guttman"))
Numeric matrix; the full design matrix
Numeric matrix; the contrast matrix
Character string; the method of partitioning (default:
beckmann
)
Guttman I. Linear Models: An Introduction. Wiley, New York, 1982.
Smith SM, Jenkinson M, Beckmann C, Miller K, Woolrich M (2007). Meaningful design and contrast estimability in fMRI. NeuroImage, 34(1):127-36.