[R] truncate integers

[T.D. Rudolph]

Is there any really easy way to truncate integers with several consecutive
digits without rounding and without converting from numeric to character
(using strsplit, etc.)??  Something along these lines:

e.g. = 456

truncfun(e.g., location=1)
= 4

truncfun(e.g., location=1:2)
= 45

truncfun(e.g., location=2:3)
= 56

truncfun(e.g., location=3)
= 6

It's one thing using floor(x/100) to get 4 or floor(x/10) to get 45, but I'd
like to return only 5 or only 6, for example, in cases where I don't know
what the numbers are going to be.

I'm sure there is something very logical that I am missing, but my code is
getting too complicated and I can't seem to find a parsimonious solution.

Tyler
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