[R] What does this say? Error in rep("(Intercept)", nrow(a0)) : invalid 'times' argument

[C W]

Thomas, thanks for the cool trick.  I always thought browser() was the
only thing existed, apparently not.

Mike

On Sat, May 25, 2013 at 9:09 PM, Thomas Stewart
<tgs.public.mail at gmail.com> wrote:
> Mike-
>
> You can use the traceback function to see where the error is:
>
>>  bob <- matrix(rnorm(100*180), nrow=180)
>>  yyy <- rnorm(180)
>>  fit1 <- cv.glmnet(bob, yyy, family="mgaussian")
> Error in rep("(Intercept)", nrow(a0)) : invalid 'times' argument
>>  traceback()
> 6: predict.multnet(object, newx, s, type, exact, offset, ...)
> 5: predict.mrelnet(glmnet.object, type = "nonzero")
> 4: predict(glmnet.object, type = "nonzero")
> 3: lapply(X = X, FUN = FUN, ...)
> 2: sapply(predict(glmnet.object, type = "nonzero"), length)
> 1: cv.glmnet(bob, yyy, family = "mgaussian")
>
> So, thee error is in the predict.multnet function.  If you peak at that
> function, you see where the function falls apart.  It seems that the
> function wants a0 to be a matrix but in this example it is a vector.  I'm
> not familiar enough with the package to offer advice on how to fix this.
>
> -tgs
>
>
>
> On Sat, May 25, 2013 at 4:14 PM, C W <tmrsg11 at gmail.com> wrote:
>>
>> Dear list,
>> I am using glmnet.  I have no idea what this error is telling me.
>> Here's my code,
>>
>> > bob <- matrix(rnorm(100*180), nrow=180)
>> > yyy <- rnorm(180)
>> > fit1 <- cv.glmnet(bob, yyy, family="mgaussian")
>> Error in rep("(Intercept)", nrow(a0)) : invalid 'times' argument
>>
>> In fact, I peeked inside cv.glmnet() using,
>> > glmnet:cv.glmnet
>>
>> Can't even find the error message in the code.  I am clueless at the
>> moment.
>> Thanks in advance,
>> Mike
>>
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>>
>>
>