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Thank you for your quick respons, helps, advise, links, etc. I have solved my problems now. Best wishes, Xiyan Lon

Are there any packages to handle multi-class classification with boosting. I know adaboost function include in package "boost" but that is only for two-class. Thanks for your help. Xiyan Lon

I am learning classification using SVM for research (survey). The data that I have had some class. I know that the library (e1071) can only handle multiclass with one-against-one-method. I want to know are there any other...

Dear All, I have a model to predict time series data for example: data(LakeHuron) Lake.fit <- arima(LakeHuron,order=c(1,0,1)) then the function predict() can be used for predicting future data with the model: LakeH.pred...

On Mon, 21 Mar 2005 10:15:37 -0500, Liaw, Andy <andy_liaw at merck.com> wrote: > The `frame' component of an rpart object should already be a data frame. > You just need to make sure to assign them to...

Dear all, I want to summary and count my data something like > te.Ce [,1] [,2] [1,] -1 0.05 [2,] 1 0.05 [3,] 1 0.00 [4,] 0 0.05 [5,] -1 0.00 [6,] 0 0.10...

Dear R-Helper, I want to know how I get a list work which I saved in RData file. For example, > test.xy <- function(x,y) { + xy <- x+y + xy + } > > xyadd <- test.xy(x=2, y=3) > xyadd [1] 5...

Dear all, I have a data file with 3 variables (x1, x2, x3) where variable x1 have data that consists of several numbers separated by commas. id name x1 x2 x3 aa101 1,4,5 2 1 aa102 1,2...

Dear all, I am currently studying categorical data analysis, if I have two tables: R> cross sex cross death count 1 FEMALE WEF YES 26 2 MALE WEF YES 14 3 FEMALE OGG YES 32 4 MALE OGG YES 43...

Dear useR I want to know why package gregmisc did not work very well. I did not find this package in my library directory. > local({a <- CRAN.packages() + install.packages(select.list(a[,1],,TRUE), .libPaths()[1], available=a, dependencies...

Dear UseR I have a dataset, for instance x1(A, B, C), x2(M,F), x3(X1,X2,X3,X4) and x4(W,F,P). I want to make a small dataset with the random tuple. I know package e1071...

Dear UseR I have a dataset, for instance x1(A, B, C), x2(M,F), x3(X1,X2,X3,X4) and x4(W,F,P). I want to make a small dataset with the random tuple. I know package e1071...

Dear all, I have a script about iteration classification, like this below data(iris) N <- 5 ir.tr.iter <- vector('list',N) ir.tr <- vector('list',N) for (j in 1:N) { ir.tr[[j]] <- rpart(Species ~., data=iris) ir...

Dear Prof. Brian, Why I need to know, because I lost my work and code which I used in my project. Lucky I always save my work which RData file. But I forgot which list, function, initial, etc I used...

Thank to Dimitris and Prof. Brian Ripley. Now I understand why I did not find package gregmisc in my library directory. http://tolstoy.newcastle.edu.au/R/packages/04/0056.html It is announce a few week ago... smile. Best...

Dear useR again, How can I read a dataset if lines in dataset did not have same elements (have different lengths), For example: 1 2, 4, 16, 1, 1, 3, 1, 1, 15, 5, 1, 1, 14, 1, 1 2...