similar to: Problem installing package "caret"

Dear RUsers, I just upgraded from 2.6.0 to 2.6.2 and tried to reinstall the RWinEdt patch to work with WinEdt so that I can continue function as I always have but I have run into problems that I don't understand how to fix. Any help would be great. Essentially, I downloaded the latest RWinEdt zip folder from the CRAN website and tried calling the library. I tried re-installing it a bunch of

The following code fails to train a nnet model in a random dataset using caret: nR <- 700 nCol <- 2000 myCtrl <- trainControl(method="cv", number=3, preProcOptions=NULL, classProbs = TRUE, summaryFunction = twoClassSummary) trX <- data.frame(replicate(nR, rnorm(nCol))) trY <- runif(1)*trX[,1]*trX[,2]^2+runif(1)*trX[,3]/trX[,4] trY <-

I want to use the caret package and found out about the timingSamps obtion to obtain the time which is needed to predict results. But, as soon as I set a value for this option, the whole model generation fails. Check this example: ------------------------- library(caret) tc=trainControl(method='LGOCV', timingSamps=10) tcWithout=trainControl(method='LGOCV')

Cada vez que intento cargar el paquete "agricolae" me da el siguiente mensaje: Error: package or namespace load failed for 'agricolae' in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]): there is no package called 'spData' He intentado todo actualizar los paquetes, volverlos a instalar pero no hay forma. Si sabeis la solución ?? Un saludo. Juan

Hy, I got the following problem when trying to build a rpart model and using everything but LOOCV. Originally, I wanted to used k-fold partitioning, but every partitioning except LOOCV throws the following warning: ---- Warning message: In nominalTrainWorkflow(dat = trainData, info = trainInfo, method = method, : There were missing values in resampled performance measures. ----- Below are some

I'm using caret to assess classifier performance (and it's great!). However, I've found that my results differ between R2.* and R3.* - reported accuracies are reduced dramatically. I suspect that a code change to kernlab ksvm may be responsible (see version 5.16-24 here: http://cran.r-project.org/web/packages/caret/news.html). I get very different results between caret_5.15-61 +

Anyone knows what does this error means? > library(RcppClassic) Error in gzfile(file, "rb") : cannot open the connection I thought I installed the package successfully: > install.packages('RcppClassic') Installing package(s) into ‘C:/Program Files/R/library’ (as ‘lib’ is unspecified) also installing the dependency ‘Rcpp’ trying URL

Max and List, Could you advise me if I am using the proper caret syntax to carry out leave-one-out cross validation. In the example below, I use example data from the rda package. I use caret to tune over a grid and select an optimal value. I think I am then using the optimal selection for prediction. So there are two rounds of resampling with the first one taken care of by caret's train

Hi Folks! I'm reading in some data from a .csv file that has a date column. How do I use colClasses to get read.csv to recognize the date column? The documentation on this seems to be nil - And yes, I've read help and R Data Import/Export and can't figure out what the colClasses syntax is. Thanks, john [[alternative HTML version deleted]]

All: How do I obtain one step ahead out-of-sample forecasts from a model using "dyn" or "dynlm" ? Thanks! Best, John [[alternative HTML version deleted]]

Hi Folks! I'm struggling with dates - but enough about my personal life..... I have two daily time series files. In one (x) the date format is Y/m/d and the other (y) is d/m/y. I used read.zoo on both and they read into R with no problem. Then I use: weekdays(as.Date(x$DATE)) and get what I expect - all the days of the week in my data set. When I use:

Hi folks! How do I extract lags from a formula? An example: mod.eq<-formula(x~lag(x,-1)+lag(x,-2)) > mod.eq x ~ lag(x, -1) + lag(x, -2) > mod.eq[1] "~"() > mod.eq[2] x() > mod.eq[3] lag(x, -1) + lag(x, -2)() I'm trying to extract the lags into a vector that would be simply [1,2]. How do I do this? I'm using the dyn package to do dynamic

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Dear developers, I have jutst started working with caret and all the nice features it offers. But I just encountered a problem: I am working with a dataset that include 4 predictor variables in Descr and a two-category outcome in Categ (codified as a factor). Everything was working fine I got the results, confussion matrix etc. BUT for obtaining the AUC and predicted probabilities I had to add

Hi Folks! I used the code below previously with no problems, but now I get: DTB3<-read.table("C:\\Program Files\\R\\R-2.7.1\\DTB3.csv",header=TRUE,sep=",") > tail(DTB3) DATE VALUE 14233 2008-07-23 1.56 14234 2008-07-24 1.62 14235 2008-07-25 1.71 14236 2008-07-28 1.70 14237 2008-07-29 1.69 14238 2008-07-30 1.67 >

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Hi folks! Does anyone know why I might see something like this after running system.time? system.time(svd(Mean_svd_data)) user system elapsed 0 0 0 The data set is tiny and the function returns results instantly, but shouldn't it still give me a time? Thanks, John [[alternative HTML version deleted]]

Bugs item #10663, was opened at 2007-05-07 19:57 You can respond by visiting: http://rubyforge.org/tracker/?func=detail&atid=218&aid=10663&group_id=35 Category: Incorrect behavior Group: None Status: Open Resolution: None Priority: 3 Submitted By: Alex Fenton (brokentoy) Assigned to: Alex Fenton (brokentoy) Summary: Keys not responding in caret sample, Linux Initial Comment: On