Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2018-03-28 Thread Andreas Tille
Hi David, thanks for your quick response. I need to admit I'm lacking the background to understand your example but I read your mail that you agree that version 2.1.1 is buggy. The bug does not contain any input data to reproduce the issue for version 2.1.3. Would you be able to reproduce it

Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2018-03-27 Thread David Paulsen
Hello, I clearly could have provided better documentation. There was an issue I believe in the predict function when single.tree was set to TRUE. The first 6 trees of the model are printed out to show the the first two trees for each of the three classes. The first set of predictions are shown

Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2018-03-27 Thread Harry Southworth
Just had a message from Brandon Greenwell saying he hopes to look into it after end of term. He's likely your best bet. Harry On 27 Mar 2018 4:08 pm, "Andreas Tille" wrote: Hello Harry, On Tue, Mar 27, 2018 at 02:41:28PM +0100, Harry Southworth wrote: > That post is about

Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2018-03-27 Thread Andreas Tille
Hello Harry, On Tue, Mar 27, 2018 at 02:41:28PM +0100, Harry Southworth wrote: > That post is about 2.5 years old and the version of gbm is 2.1.1. That's correct. The original maintainer seems to have lost interest and I'm now trying to polish the list of bugs in any R package in Debian. > The

Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2018-03-27 Thread Andreas Tille
Hello Harry, the R packaging team is maintaining gbm in Debian. A user has filed a bug report against version 2.1.1 which I would like to bring to your attention. Please have a look here where the problem is explicitly described: https://bugs.debian.org/805395 Could you please comment on

Re: Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2015-11-17 Thread Andrei POPESCU
Control: reassign -1 r-cran-gbm 2.1-1 On Ma, 17 nov 15, 09:29:12, David Paulsen wrote: > Package: gbm > Version: 2.1.1 > > For the bernoulli distribution model, predict.gbm(model, n.trees=c(1,2), > single.tree=TRUE) returns the correct results. > > For the multinomial distribution model with

Processed: Re: Bug#805395: predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution

2015-11-17 Thread Debian Bug Tracking System
Processing control commands: > reassign -1 r-cran-gbm 2.1-1 Bug #805395 [gbm] predict.gbm() using single.tree=TRUE does not return the correct predictions with multinomial distribution Warning: Unknown package 'gbm' Bug reassigned from package 'gbm' to 'r-cran-gbm'. No longer marked as found in