[R] predict for a cv.glmnet returns an error

2011-11-01 Thread asafw 

Hi there,

I am trying to use predict() with an object returned by cv.glmnet(), and get
the following error:
no applicable method for 'predict' applied to an object of class cv.glmnet

What's wrong?

my code:

x=matrix(rnorm(100*20),100,20)
y=rnorm(100)
cv.fit=cv.glmnet(x,y)
predict(cv.fit,newx=x[1:5,])
coef(cv.fit)

Thanks so much,

Asaf

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Re: [R] predict for a cv.glmnet returns an error

2011-11-01 Thread Dennis Murphy 
Hi:

Here's what I got when I ran your code:

library('glmnet')
 x=matrix(rnorm(100*20),100,20)
 y=rnorm(100)
 cv.fit=cv.glmnet(x,y)
 predict(cv.fit,newx=x[1:5,])
 1
[1,] 0.1213114
[2,] 0.1213114
[3,] 0.1213114
[4,] 0.1213114
[5,] 0.1213114
 coef(cv.fit)
21 x 1 sparse Matrix of class dgCMatrix
1
(Intercept) 0.1213114
V1  0.000
V2  0.000
V3  0.000
V4  0.000
V5  0.000
V6  0.000
V7  0.000
V8  0.000
V9  0.000
V10 0.000
V11 0.000
V12 0.000
V13 0.000
V14 0.000
V15 0.000
V16 0.000
V17 0.000
V18 0.000
V19 0.000
V20 0.000

### Check against the versions of the packages listed below:
 sessionInfo()
R version 2.14.0 (2011-10-31)
Platform: x86_64-pc-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] grid  stats graphics  grDevices utils datasets  methods
[8] base

other attached packages:
[1] glmnet_1.7.1   Matrix_1.0-1   lattice_0.20-0 ggplot2_0.8.9  proto_0.3-9.2
[6] reshape_0.8.4  plyr_1.6

loaded via a namespace (and not attached):
[1] tools_2.14.0


Dennis

On Tue, Nov 1, 2011 at 3:34 PM, asafw assafweinst...@gmail.com wrote:

 Hi there,

 I am trying to use predict() with an object returned by cv.glmnet(), and get
 the following error:
 no applicable method for 'predict' applied to an object of class cv.glmnet

 What's wrong?

 my code:

 x=matrix(rnorm(100*20),100,20)
 y=rnorm(100)
 cv.fit=cv.glmnet(x,y)
 predict(cv.fit,newx=x[1:5,])
 coef(cv.fit)

 Thanks so much,

 Asaf

 --
 View this message in context: 
 http://r.789695.n4.nabble.com/predict-for-a-cv-glmnet-returns-an-error-tp3965744p3965744.html
 Sent from the R help mailing list archive at Nabble.com.

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.


__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.