R help - Jul 2004 - R can't find some functions in assist package

Oh yes. The "load package" under the "packages menu" in the
Windows version
does that. To check I typed "library(assist)" after starting R. Same 
behavior, ssr is found, but others like predict.ssr, and plot.ssr, give a 
"not found" message.

Thanks for the suggestion.

Mike

> Oh yes. The "load package" under the "packages menu" in
the Windows
> version
> does that. To check I typed "library(assist)" after starting R.
Same
> behavior, ssr is found, but others like predict.ssr, and plot.ssr, give a
> "not found" message.
Short answer:  Try using "predict" instead of "predict.ssr".
I think
you're meant to quietly use the predict and plot methods provided, and not
mention their inner names.

Long answer:
Namespaces.  This means that a method for an object isn't visible to R as
a whole.  This avoids conflics should another package pick the same names.

Does this work?

getAnywhere(predict.ssr)

Cheers

Jason

That's because `assist' has a namespace:
> library(assist)
Loading required package: nlme 
> predict.ssr
Error: Object "predict.ssr" not found
> methods("predict")
 [1] predict.ar*                predict.Arima*            
 [3] predict.arima0*            predict.glm               
 [5] predict.gls*               predict.gnls*             
 [7] predict.HoltWinters*       predict.lm                
 [9] predict.lme*               predict.lmList*           
[11] predict.loess*             predict.mlm               
[13] predict.nlme*              predict.nls*              
[15] predict.poly               predict.ppr*              
[17] predict.princomp*          predict.slm*              
[19] predict.smooth.spline*     predict.smooth.spline.fit*
[21] predict.snm*               predict.snr*              
[23] predict.ssr*               predict.StructTS*         

    Non-visible functions are asterisked

Use either assist:::predict.ssr or getAnywhere("predict.ssr").

Andy
> From: Michael Axelrod
> 
> Oh yes. The "load package" under the "packages menu" in
the
> Windows version 
> does that. To check I typed "library(assist)" after starting R.
Same
> behavior, ssr is found, but others like predict.ssr, and 
> plot.ssr, give a 
> "not found" message.
> 
> Thanks for the suggestion.
> 
> Mike
> 
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