[R] Constructing a matrix of outputs from loop

[Bert Gunter]

David:

Perhaps not. func() must be vectorized for this to work.

-- Bert


On Mon, Jul 8, 2013 at 2:06 PM, David Carlson <dcarlson at tamu.edu> wrote:
> ?outer
>
> e.g. output <- outer(ap, am, func)
>
> -------------------------------------
> David L Carlson
> Associate Professor of Anthropology
> Texas A&M University
> College Station, TX 77840-4352
>
> -----Original Message-----
> From: r-help-bounces at r-project.org
> [mailto:r-help-bounces at r-project.org] On Behalf Of Edward Patzelt
> Sent: Monday, July 8, 2013 3:15 PM
> To: r-help at r-project.org
> Subject: [R] Constructing a matrix of outputs from loop
>
> R -
>
> I would like to construct a matrix from the output of a loop that
> has 2
> values it varies over the course of the loop creating a 20x20 matrix
> of
> output values:
>
>  ap = logspace(-3, 0, 20)
>
>  am = logspace(-3, .7, 20)
>   for (ap in apList)
>   {
>    for (am in amList)
>    {
>
>  output = func(ap, am)
> }
> }
>
> i.e. cell 1x1 is -3,-3 and the value is 45 or something
>
> --
> *Edward H Patzelt | Research Assistant
> Psychology | University of Minnesota  | Elliott Hall, 75 East River
> Road |
> Minneapolis, MN 55455
> Email: patze003 at umn.edu  |
> Main: 612.626.0072
> |
> Mobile: 651.315.3410
> | Office: S355
> **
>
> *
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

Internal Contact Info:
Phone: 467-7374
Website:
http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm