Re: [R] Why does plot() ignore the data type for axis labels?

From: Stiffler <zoubidoo_at_hotmail.com>
Date: Tue, 19 Feb 2008 14:40:46 -0800 (PST)

Mark Difford wrote:
>

>>> I was wondering why the plot() command ignores the datatype when
>>> displaying axis labels...

>
> plot() doesn't ignore the datatype:
> [...]
> plot(x,y) calls xy.coords(), which recasts x as: x = as.double(x), which
> is fine, since x is (also/primarily) numeric.
>
> HTH, Mark.
>
>

Thanks for the explanation Mark.

If integers are being recast as doubles R is ignoring/overriding the user's choice of data-type. There may be good reasons for doing that internally (uniformity, code re-use etc) , but it is not what I'd expect as an end-user --- neither ?plot nor ?xy.coords seem to mention that coordinates need to be floating point numbers.

Best regards,
Stiffler

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