[R] gbm error

[jtf2076]

Darrin, what version of R are you using have the same question.  I have been
using the gbm package without problem with R 2.7.1. but I recently switched
computers and downloaded 2.7.2.  I used the following code, which works fine
on my old computer with 2.7.1 but I get an error with the new version.  

> fin.tc5.lr01 <- gbm.step(data=fin, 
+     gbm.x = 7:14,
+     gbm.y = 24,
+     family = "bernoulli",
+     tree.complexity = 5,
+     learning.rate = 0.01,
+     bag.fraction = 0.5)
Error: could not find function "gbm.step"



Darin Brooks wrote:
> 
> Good afternoon
>  
> Has anyone tried using Dr. Elith's BRT script?  I cannot seem to run
> gbm.step  from the installed gbm package.  Is it something external to
> gbm?
>  
> When I run the script itself
>  
> <- gbm.step(data=model.data, 
> 
>     gbm.x = colx:coly,
> 
>     gbm.y = colz,
> 
>     family = "bernoulli",
> 
>     tree.complexity = 5,
> 
>     learning.rate = 0.01,
> 
>     bag.fraction = 0.5)
> 
>  
> ... I keep encountering the same error:
>  
> ERROR:  
>   unexpected ')' in "bag.fraction = 0.5)"
>  
> I've tried all sorts of variations (such as)
>  
> sep22BRT.lr01 <- gbm{data=sep22BRT, 
> gbm.x = sep22BRT[,3:42], 
> gbm.y = sep22BRT[,1], 
> family = "bernoulli", 
> tree.complexity = 5, 
> learning.rate = 0.01, 
> bag.fraction = 0.5}
>  
> and cannot find the problem. 
>  
> Is there a glaring error that I am overlooking? 
>  
>  
> Darin Brooks
> Geomatics/GIS/Remote Sensing Coordinator
> Kim Forest Management Ltd. Cranbrook Office
> Cranbrook, BC
>  
>  
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
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> 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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