[R] logarithmic seq() ?

[David Winsemius]

On Sep 21, 2009, at 2:47 PM, Oliver Bandel wrote:

> Hello,
>
>
> in scilab /Matlab there are functions that can create linear  
> sequences (like R's
> seq()) as well as logarithmic sequences.
>
>
> Is there a logarithmic aequivalent of seq()?
> Or maybe this would be an idea for newer R-releases,
> maybe a type-option with "linear" and "logarithmic" as
> parameters....?!
>

A question came up recently to which the answer something along the  
lines of:

exp( seq(log(x[1], log(x[length(x)]), length.out=6) )

Is that what you meant by a logarithmic sequence? Or would it be:

log(1:10)  # ?

David Winsemius, MD
Heritage Laboratories
West Hartford, CT