Why not include a function resembling this:
span <- function(x) {
diff(range(x, na.rm=TRUE))
}
in your .Rprofile? It's simple, quick, and easier to type than diff(...) .
---JRG
On Wednesday, June 25th, 2025 at 3:18 PM, Dennis Fisher <fis...@plessthan.com>
wrote:
>
>
> Duncan
>
> That would certainly be a possibility but it seems to me that this is
> sufficiently simple to add to base R. If it is in a package, users would need
> to install the package.
>
> Dennis
>
>
> Dennis Fisher MD
> P < (The "P Less Than" Company)
> Phone: 1-415-307-4791
> www.PLessThan.com
>
> > On Jun 25, 2025, at 11:11 AM, Dennis Fisher fis...@plessthan.com wrote:
> >
> > Version 4.4.2
> > OS X
> >
> > Colleagues
> >
> > I often need to determine the span of the x-variable in a graphic.
> >
> > This is easy to determine with:
> > diff(range(VAR, na.rm=T))
> >
> > I am not aware of any function in base R that accomplishes this and “span”
> > is not taken.
> >
> > Would it be possible to add such a function? Not a major addition but often
> > useful.
> >
> > Dennis
> >
> > Dennis Fisher MD
> > P < (The "P Less Than" Company)
> > Phone: 1-415-307-4791
> > www.PLessThan.com
>
>
>
> [[alternative HTML version deleted]]
>
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