getColClasses {limma}R Documentation

Construct colClasses vector for use within read.table

Description

Construct a colClasses vector, an argument in read.table used in read.maimages

Usage

getColClasses(cols, ...)

Arguments

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

Details

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

Value

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)

Author(s)

Marcus Davy

See Also

wtVariables

Examples

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

[Package limma version 2.4.7 Index]