[R] gbm package on 64 bit machine

[jtf2076]

I'm having trouble getting the gbm package to load on my new 64 bit machine
running xp professional OS.  I installed version 2.72 and loaded the
package, although I got an error message:

The downloaded packages are in

        C:\Documents and Settings\Administrator\Local
Settings\Temp\RtmpQbYngm\downloaded_packages

updating HTML package descriptions

> fin<-read.csv(c:/documents and settings/administrator/my
> documents/R/fin_sb_mat.csv")

Error: unexpected '/' in "fin<-read.csv(c:/"

> fin<-read.csv("c:/documents and settings/administrator/my
> documents/R/fin_sb_mat.csv")

> 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"

Any ideas on what could be wrong?

John
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