search for: ipred

On Wed, Feb 08, 2017 at 02:37:57PM +0100, Christian Borntraeger wrote: > On 02/08/2017 04:20 AM, Michael S. Tsirkin wrote: > [...] > > * Prototype > > > > A partial prototype can be found under > > tools/virtio/ringtest/ring.c > > > > Test run: > > [mst at tuck ringtest]$ time ./ring > > real 0m0.399s > > user 0m0.791s > >

On Wed, Feb 08, 2017 at 02:37:57PM +0100, Christian Borntraeger wrote: > On 02/08/2017 04:20 AM, Michael S. Tsirkin wrote: > [...] > > * Prototype > > > > A partial prototype can be found under > > tools/virtio/ringtest/ring.c > > > > Test run: > > [mst at tuck ringtest]$ time ./ring > > real 0m0.399s > > user 0m0.791s > >

Dear List, I have a question regarding "ipred" package. Under 10-fold cv, for different knn ( = 1,3,...25), I am getting same misclassification errors: ############################################# library(ipred) data(iris) cv.k = 10 ## 10-fold cross-validation bwpredict.knn <- function(object, newdata) predict.ipredknn(object, newd...

Hello List, I`m trying to make prediction using a bagged tree with the package ipred. I tried to follow the manual but I`m getting an error message. Also browsing through the list-archive I didn`t find any hint. Maybe someone can help me? selbag <- bagging(SOIL_UNIT ~., data=traindat.bin, coob=TRUE) Error in dimnames(X) <- list(dn[[1L]], unlist(collabs, use.names = FAL...

Last week Giovanni Parrinello posted a message asking why various packages were loaded when he loaded an .Rdata file. Brian Ripley replied saying he thought it was because the saved workspace contained a reference to the namespace of ipred. (Correspondence copied below). This begs the question: how did the reference to the namespace of ipred come to be in the .Rdata file? Brian did say it is likely to be because the workspace contained object(s) saved with environment the namespace of ipred - but how would this come about? In this...

Hi, smbclient \\\\i60ws1\\public_html -U ladanyi results in: [2008/08/17 10:43:10, 0] smbd/service.c:make_connection_snum(1003) '/var/www/public_html/IPR-OFFICE/ladanyi' does not exist or permission denied when connecting to [public_html] Error was Permission denied I use the: winbind use default domain = yes option. This option works for wbinfo -u/-g option. Is it possible

Last week Giovanni Parrinello posted a message asking why various packages were loaded when he loaded an .Rdata file. Brian Ripley replied saying he thought it was because the saved workspace contained a reference to the namespace of ipred. (Correspondence copied below). This begs the question: how did the reference to the namespace of ipred come to be in the .Rdata file? Brian did say it is likely to be because the workspace contained object(s) saved with environment the namespace of ipred - but how would this come about? In this...

...of depression in a large data file. Since the prevalence is very low (5%), I have been using classification trees with a loss matrix that penalized false negatives more than false positives. I have become interesested in bagging these (successful!) classification trees, and have been using the ipred package for this. However, the ipred algorithm does not seem to do anything with the loss matrix I specify in control=rpart.control(method="class",cp=0,xval=0,parms=list(loss=matrix(c(0,1,10,0))) Am I doing anyting wrong or does the ipred package simply not allow for specifying such a...

...t getting any document/help for using partykit/rpart. http://www.agrocampus-ouest.fr/math/useR-2009/slides/Hothorn+Zeileis.pdfgives some example, but it doesn't tell how my own data should be formatted so that it can be accepted by partykit. Example, data("GlaucomaM", package = "ipred") is accepted. Now instead of GlaucomaM, I need to give my own data. But the data format for GlaucomaM is not given. So how can I know that? Please help me in this. Thanks and Regards. - Indranil Basu, Bangalore, India [[alternative HTML version deleted]]

...ts I've had. *** caught segfault *** address(nil), cause 'unknown' I'm working on a 64bit build of R 2.8.1 on a linux machine. If you want more details, I can surely get them. It happens on the last line for the following for all different valies of ns: library(rpart) library(ipred) data("Forbes2000", package="HSAUR") Forbes2000 <- subset(Forbes2000, !is.na(profits)) datasize=length(Forbes2000$profits) f <- rpart(profits ~ assets + marketvalue + sales, data=Forbes2000) fb <- bagging(profits ~ assets + marketvalue + sales, data=Forbes2000) fb &lt...

Dear all, Does anybody can explain this: different results got when all the same parameters are used in the errorest() in library ipred, as the following? errorest(Species ~ ., data=iris, model=randomForest, estimator = "cv", est.para=control.errorest(k=3), mtry=2)$err [1] 0.03333333 > errorest(Species ~ ., data=iris, model=randomForest, estimator = "cv", est.para=control.errorest(k=3), mtry=2)$err [1] 0...

Dear all, can anybody help me with the program below? The function predict.lda seems to be defined but cannot be used by errortest. The R version is 1.7.1 Thanks in advance, Stefan ---------------- library("MASS"); library("ipred"); data(iris3); tr <- sample(1:50, 25); train <- rbind(iris3[tr,,1], iris3[tr,,2], iris3[tr,,3]); test <- rbind(iris3[-tr,,1], iris3[-tr,,2], iris3[-tr,,3]); cl <- factor(c(rep("s",25), rep("c",25), rep("v",25))); z <- lda(train, cl); predict(z, te...

DASH being an open standard, doesnt make it necessarily patent free ? http://dashif.org/about-dash-industry-forum/ On Tue, Feb 11, 2014 at 9:12 AM, "Thomas B. R?cker" < thomas.ruecker at tieto.com> wrote: > Hi, > > On 11/02/14 10:00, Yannick "Modah" Gouez wrote: > > Hi guys, > > > > I was wondering if there were any plans for MPEG DASH

The package ipred is uploaded to CRAN. The main focus of the package is the calculation of improved predictors in classification tasks. Misclassification error can be improved by bootstrap aggregated classification trees and/or the framework of indirect classification. Furthermore, a unified interface for the estim...

The package ipred is uploaded to CRAN. The main focus of the package is the calculation of improved predictors in classification tasks. Misclassification error can be improved by bootstrap aggregated classification trees and/or the framework of indirect classification. Furthermore, a unified interface for the estim...

Hi, I'm trying to find information about rsurv "Simulating Survival data" in the IPred package, without luck this far. In the description of this function we are asked to consult Hothorn et al. (2003) for the details. This paper is not in the reference list. Should it be same authors (2004)? In that case I will try my library, in any other case could someone please give me so...

Hello! I'm Taeho, a graduate student in South Korea. In order to get .632+ bootstrap error using random forest, I have tried to use 'ipred' package; more specifically the function 'errorest' has been used. Following the guidelines, I made a simple command line like below: error<-errorest(class ~ ., data=data, model=randomForest, estimator = "632plus")$err however, I got an error message saying that: random...

Dear all: I have been thinking to import below one data file (.txt)into R by read.table(..,skip=1, header=T). But How can I deal with the repeated rows of TABLE NO.1 and names of data variables in the middle of this data file. The similar block will be repeated 100 times, here only show 4 of them and within each block, data records also can vary, here only paste 4 rows for example. I appreciate

...moved as it is not an appropriate list.] > Last week Giovanni Parrinello posted a message asking why various > packages were loaded when he loaded an .Rdata file. Brian Ripley replied > saying he thought it was because the saved workspace contained a > reference to the namespace of ipred. (Correspondence copied below). > > This begs the question: how did the reference to the namespace of ipred > come to be in the .Rdata file? Brian did say it is likely to be because > the workspace contained object(s) saved with environment the namespace > of ipred - but how would...

Dear all: I have been thinking to import below one data file (.txt)into R by read.table(..,skip=1, header=T). But How can I deal with the repeated rows of TABLE NO.1 and names of data variables in the middle of this data file. The similar block will be repeated 100 times, here only show 4 of them and within each block, data records also can vary, here only paste 4 rows for example. I appreciate