R/col2idx.R

In XLConnect: Excel Connector for R

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#
# XLConnect
# Copyright (C) 2010-2024 Mirai Solutions GmbH
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# This program is free software: you can redistribute it and/or modify
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#
# Converting column names to indices
# 
# Author: Martin Studer, Mirai Solutions GmbH
#
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col2idx = function(x) {
	if(!is.character(x)) stop("x must be a vector of column names (character)!")
	sapply(x, J("org.apache.poi.ss.util.CellReference")$convertColStringToIndex, USE.NAMES = FALSE) + 1
}