labdsv: problems with ca function

Did you load the labdsv library in your R session?  If not you need
to do this:

library(labdsv)
caherbpour <- ca(herbpour)

The installer only installs the package on your harddisk.  You still
need to attach the package to your R session before you can use the
functions in it.

Hope this helps.

Kjell

On 24 Aug 2005, at 14:59, anne.boesch at epfl.ch wrote:

Hi,

I am brand new to R and therefore apologize if my questions sound
stupid or if I
don't use the right words. I would like to perform a correspondence
analysis
with the ca() function of Labdsv, but here is what happens when I  
try:

caherbpour<-ca(herbpour)
Erreur : impossible de trouver la fonction "ca"

I checked that labdsv is installed: I have the 1.0-1 version. From
what I can
see, the other labdsv functions are OK, since I can find files such
as const.R,
importance.R or pca.R (which are other functions of the labdsv
package) in the R
library (but NOT ca.R or any other type of file with the name "ca"
in it). I
also tried to launch some of these other functions. I receive error
messages
because I don't know yet how to use them (ie. what arguments to
enter), but they
are at least found by R.
Is it possible the labdsv package I have is not complete (although
I installed
it via Package Installer -> Get List -> CRAN binaries) and that the
ca function
is missing ?
I saw one can also perform CA analyses with the cca function of the
vegan
package. Would it be a better solution ? are there differences
between the ca
function of labdsv and the cca one of vegan ?

In case this can help, my operating system is OS 10.3.9 and the
version of R is
1.12 (v1622)

Thank you in advance for your help!

Anne Boesch