On 25/02/2015 8:55 PM, ce wrote:
> Dear all,
>
> I would like to count how many digits are there on the left of a the dot of a
> numeric variable
>
> a=0.0001
This will depend on the formatting used. If default formatting used by
as.character() is fine, then
nchar(sub("^[[:digit:]]*[.]", "", a))
should work. (Note that default formatting is scientific for 0.0001.) If
you want some other formatting, then format first, and pass a character
object, e.g.
chars <- format(a, scientific = FALSE)
nchar(sub("^[[:digit:]]*[.]", "", chars))
Duncan Murdoch
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