[R-SIG-Mac] labdsv: problems with ca function

[Kjell Konis]

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
>