Re: [R] difference between createPartition and createfold functions

2011-10-03 Thread Max Kuhn
No, it is an argument to createFolds. Type ?createFolds to see the appropriate syntax: "returnTrain a logical. When true, the values returned are the sample positions corresponding to the data used during training. This argument only works in conjunction with list = TRUE" On Mon, Oct 3, 20

Re: [R] difference between createPartition and createfold functions

2011-10-03 Thread bby2103
Hi Max, Thanks for the note. In your last paragraph, did you mean "in createDataPartition"? I'm a little vague about what returnTrain option does. Bonnie Quoting Max Kuhn : Basically, createDataPartition is used when you need to make one or more simple two-way splits of your data. For ex

Re: [R] difference between createPartition and createfold functions

2011-10-02 Thread Max Kuhn
Basically, createDataPartition is used when you need to make one or more simple two-way splits of your data. For example, if you want to make a training and test set and keep your classes balanced, this is what you could use. It can also make multiple splits of this kind (or leave-group-out CV aka

Re: [R] difference between createPartition and createfold functions

2011-10-02 Thread Steve Lianoglou
Hi, On Sun, Oct 2, 2011 at 3:54 PM, wrote: > Hi Steve, > > Thanks for the note. I did try the example and the result didn't make sense > to me. For splitting a vector, what you describe is a big difference btw > them. For splitting a dataframe, I now wonder if these 2 functions are the > wrong c

Re: [R] difference between createPartition and createfold functions

2011-10-02 Thread bby2103
Hi Steve, Thanks for the note. I did try the example and the result didn't make sense to me. For splitting a vector, what you describe is a big difference btw them. For splitting a dataframe, I now wonder if these 2 functions are the wrong choices. They seem to split the columns, at least

Re: [R] difference between createPartition and createfold functions

2011-10-02 Thread Steve Lianoglou
Hi, On Sun, Oct 2, 2011 at 2:47 PM, wrote: > Hello, > > I'm trying to separate my dataset into 4 parts with the 4th one as the test > dataset, and the other three to fit a model. > > I've been searching for the difference between these 2 functions in Caret > package, but the most I can get is th

[R] difference between createPartition and createfold functions

2011-10-02 Thread bby2103
Hello, I'm trying to separate my dataset into 4 parts with the 4th one as the test dataset, and the other three to fit a model. I've been searching for the difference between these 2 functions in Caret package, but the most I can get is this-- A series of test/training partitions are crea