[R] R function similar to gradient function in Matlab?

[R. Michael Weylandt <michael.weylandt@gmail.com>]

I don't have a Matlab license or enough experience with it to know what gradient does, but I know there's a Matlab-to-R "dictionary" out there that many folks find helpful. It might have what you need (or just be generally useful). 

http://cran.r-project.org/doc/contrib/Hiebeler-matlabR.pdf

Not sure if that's the most up to date. 

Michael

On Jun 21, 2012, at 5:00 PM, Ranjan Maitra <maitra at iastate.edu> wrote:

> Hi,
> 
> I am trying to convert some Matlab code into R for running some
> experiments and I was wondering if there is some function in R which
> does the work of the gradient function in Matlab calculating the
> "gradient" of 1-, 2- and 3-d images. I only need the 3-d calculations
> for running these experiments.
> 
> Many thanks and best wishes,
> Ranjan
> 
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