Re: [R] Help，Suggest me some methods to identify tr aining set and test set!!!
Not ellegant.. but... MyDF-data.frame(cbind(x=runif(10), y=rnorm(10))) TrainingSize=5 TrainingSize_list-sample(1:nrow(MyDF))[1:TrainingSize] TrainingSize_list MyDF.training-MyDF[(1:nrow(MyDF) %in% TrainingSize_list),] MyDF.training MyDF.test-MyDF[ ! (1:nrow(MyDF) %in% TrainingSize_list),] MyDF.test bests milton On Mon, Dec 21, 2009 at 9:09 AM, bbslover dlu...@yeah.net wrote: I want to split my whole dateset to training set and test set, building model in training set, and validate model using test set. Now, How can I split my dataset to them reasonally. Please give me a hand, It is better to give me some R code. and I see some ways like using SOM to project whole independents to 2-dimensions and find some to be training set and others are test set. like below. I also want to do this. and my date is in xls accessory. Please help me. and excel file is 218*47 matrix, 47 are indepents. I want to project it to 2D and label the corresponding sample label like that picture below. thank you! http://n4.nabble.com/file/n976245/SOM%2Btraining%2Bset%2Band%2Btest%2Bset.jpg SOM+training+set+and+test+set.jpg http://n4.nabble.com/file/n976245/matlab218x47.xls matlab218x47.xls -- View this message in context: http://n4.nabble.com/Help-Suggest-me-some-methods-to-identify-training-set-and-test-set-tp976245p976245.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.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ 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.
Re: [R] Help，Suggest me some methods to identify tr aining set and test set!!!
Hi, On Mon, Dec 21, 2009 at 9:09 AM, bbslover dlu...@yeah.net wrote: I want to split my whole dateset to training set and test set, building model in training set, and validate model using test set. Now, How can I split my dataset to them reasonally. Please give me a hand, It is better to give me some R code. and I see some ways like using SOM to project whole independents to 2-dimensions and find some to be training set and others are test set. like below. I also want to do this. and my date is in xls accessory. Please help me. and excel file is 218*47 matrix, 47 are indepents. I want to project it to 2D and label the corresponding sample label like that picture below. I noticed Max already pointed you to the caret package. Load the library and look at the help for the createFolds function, eg: library(caret) ?createFolds -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact __ 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.
Re: [R] Help，Suggest me some methods to identify tr aining set and test set!!!
I noticed Max already pointed you to the caret package. Load the library and look at the help for the createFolds function, eg: library(caret) ?createFolds I think that the createDataPartition function in caret might work better for you. There are a number of other packages with similar functions. Max __ 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.
Re: [R] Help，Suggest me some methods to identify tr aining set and test set!!!
Thank you for all help. It is helpful for me. Max Kuhn wrote: I noticed Max already pointed you to the caret package. Load the library and look at the help for the createFolds function, eg: library(caret) ?createFolds I think that the createDataPartition function in caret might work better for you. There are a number of other packages with similar functions. Max __ 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. -- View this message in context: http://n4.nabble.com/Help-Suggest-me-some-methods-to-identify-training-set-and-test-set-tp976245p976641.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.
