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2009 Aug 16
1
Can a variable name include '_' or '.' in portable R code
Hi,
It says in R-intro.pdf, "For portable R code (including that to be
used in R packages) only A?Za?z0?9 should be used." I'm an wondering
why '_' and '.' can be used in portable R code.
It very common that some variable name should be composed of two or
more English words. Can somebody let me know what is the widely
accepted practice to concatenate two English