getColClasses {limma} | R Documentation |
Construct a colClasses
vector, an argument in read.table
used in read.maimages
getColClasses(cols, ...)
cols |
A character vector of all columns to search against |
... |
Accepts any character lists, character vectors, or weight functions to match wanted columns against cols |
This is an internally called function by read.maimages
to create a colClasses vector used in read.table
for fast loading of only required columns in read.maimages
Character. A named vector of classes to be assumed for the columns.
Possible values are NA (when type.convert
is used), "NULL" (when the column is skipped)
Marcus Davy
allcnames <- c("Block","Column","Row","Name","ID", "F635 Mean","F532 Mean","Flag","Autoflag") Annotation <- c("Block","Column") Columns <- list(R="F635 Mean",G="F532 Mean") Other.columns <- "Autoflag" getColClasses(allcnames, Annotation, Columns, Other.columns, wtflags) rm(allcnames, Annotation, Columns, Other.columns) # tidy up