R help - Sep 2008 - why isoMDS not found?

When I type "isoMDS()" in the R environment, a error shows up: no such
function "isoMDS". Why? And what should I do to use isoMDS?
Additionally, I
cannot install add-on packages. Typing "Rcmd.exe INSTALL
e:/VR_7.2-44.zip"
results in "'perl' is neither command nor executable file...".
Why this
happens?Thanks.
The setup file I downloaded is R-2.7.2-win32.exe. After double click and
installation, I did nothing more.

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Hi there,

You must load the MASS package first, i.e,

library(MASS)
?isoMDS


HTH,

Jorge



On Sun, Aug 31, 2008 at 10:14 PM, ³ÂÎä <geminiwhu@gmail.com> wrote:
> When I type "isoMDS()" in the R environment, a error shows up: no
such
> function "isoMDS". Why? And what should I do to use isoMDS?
Additionally, I
> cannot install add-on packages. Typing "Rcmd.exe INSTALL
e:/VR_7.2-44.zip"
> results in "'perl' is neither command nor executable
file...". Why this
> happens?Thanks.
> The setup file I downloaded is R-2.7.2-win32.exe. After double click and
> installation, I did nothing more.
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
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> 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.
>
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