calcTNullFast {sigPathway} | R Documentation |
Computes a null t distribution for each gene by permuting the phenotypes.
calcTNullFast(tab, phenotype, nsim, ngroups = 2)
tab |
a numeric matrix of expression values, with the rows and columns representing probe sets and sample arrays, respectively |
phenotype |
a numeric vector indicating the phenotype |
nsim |
an integer indicating the number of permutations to use |
ngroups |
an integer indicating the number of groups in the expression matrix |
Similar to calcTStatFast
but calculates t-statistics over permuted
phenotypes. Please refer to the help file of calcTStatFast
for more
details.
A matrix with nsim
rows and nrow(tab)
columns.
Weil Lai