R help - Feb 2007 - simple question on intervals

Hi,

I have a number (correlation coefficient) "x" in [-1,1], and a color
palette col<-grey(1:N/N) for a given N. I want to assign a color from
"col"
to "x" which corresponds to "x" in levels of cut(-1:1,N).

So for N<-4 and x<-0.3, the color should be col[3]. For N<-4 and
x<--0.8,
the color should be col[1], etc.

Thank you for your help,
Serguei
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>I have a number (correlation coefficient) "x" in [-1,1], and a
color
>palette col<-grey(1:N/N) for a given N. I want to assign a color from
"col"
>to "x" which corresponds to "x" in levels of
cut(-1:1,N).
>
>So for N<-4 and x<-0.3, the color should be col[3]. For N<-4 and
x<--0.8,
>the color should be col[1], etc.

findInterval(-0.3,seq(-1,1,2/4))

HTH
ido