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contrastnames() and contrast_names() are equivalent, returning colnames(contrasts(object)). contrastnames()<- renames contrast columns directly, accepting a character vector value with length equal to ncol(contrasts(object)). contrast_names()<- instead rebuilds the contrasts matrix using limma::makeContrasts(), accepting a character vector value of contrast names (must not contain duplicated values).

Usage

contrastnames(object, ...)

contrastnames(object, ...) <- value

contrast_names(object, ...)

contrast_names(object, ...) <- value

Arguments

object

SEDesign object

...

additional arguments are ignored

value

character vector: contrast column names (for contrastnames<-) or contrast names to rebuild via limma::makeContrasts() (for contrast_names<-)