R/idx2col.R

In XLConnect: Excel Connector for R

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#
# XLConnect
# Copyright (C) 2010-2021 Mirai Solutions GmbH
#
# This program is free software: you can redistribute it and/or modify
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#
# Converting indices to column names
# 
# Author: Martin Studer, Mirai Solutions GmbH
#
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idx2col = function(x) {
	if(!is.numeric(x)) stop("x must be a vector of indices (numeric)!")
	sapply(as.integer(x - 1), J("org.apache.poi.ss.util.CellReference")$convertNumToColString, USE.NAMES = FALSE)
}