similar to: formula and class label

Displaying 20 results from an estimated 20000 matches similar to: "formula and class label"

2010 Jun 14
2
Multiple regressions
Hi, Could you please tell me whether SVM can do multiple regression or not? Cheers, Amy _________________________________________________________________ Browse profiles for FREE! Meet local singles online. [[alternative HTML version deleted]]
2010 Jul 11
1
The formula interface of SVM
Hi Could you please explain the line that I got from the documentation of R? does it mean that there is a difference between using and not using the formula interface with SVM ?: If the predictor variables include factors, the formula interface must be used to get a correct model matrix. Cheers, Amy _________________________________________________________________ View photos of
2010 Jun 15
1
cross validation of SVM
hi, could you please tell me what kind of cross validation that SVM of e1071 uses? Cheers, Amy _________________________________________________________________ View photos of singles in your area! Looking for a hot date? [[alternative HTML version deleted]]
2010 Jan 06
1
svm
Hi, I understand from help pages that in order to use a data set with svm, I have to divide it into two files: one for the dataset without the class label and the other file contains the class label as the following code:- library(e1071) x<- read.delim("mydataset_except-class-label.txt") y<- read.delim("mydataset_class-labell.txt") model <- svm(x, y, cross=5)
2010 Feb 03
4
contour function: changing colour according to different levels
Hi everybody, I am using the contour function to draw isobares. And i would like to to bold contours for an interval of 500m and weak contour for an interval of 100m. Can someone help me with this? Thanks a lot Karine _________________________________________________________________ [[elided Hotmail spam]] [[alternative HTML version deleted]]
2010 Mar 14
1
Error in object$tables[[v]] : subscript out of bounds
Hi, Could you please tell me how I correct the following error message? “Error in object$tables[[v]] : subscript out of bounds” This is the code: library(e1071) data(iris) attach(iris) class_label <- names(iris)[1] myformula <- formula(paste(class_label,"~ .")) mymodel<-naiveBayes(myformula, iris,cross=3) predict(mymodel,iris) ##Error in object$tables[[v]] :
2010 Apr 06
3
svm of e1071 package
Hello List, I am having a great trouble using svm function in e1071 package. I have 4gb of data that i want to use to train svm. I am using Amazon cloud, my Amazon Machine Image(AMI) has 34.2 GB of memory. my R process was killed several times when i tried to use 4GB of data for svm. Now I am using a subset of that data and it is only 1.4 GB. i remove all unnecessary objects before calling
2004 Sep 14
1
how to use update if method for formula is not in namespace?
Dear R-devel, I've noticed that if the method for formula is not exported in NAMESPACE, then update() would fail. As an example: > library(e1071) > data(iris) > iris.svm <- svm(Species ~ ., data=iris) > update(iris.svm) Error in eval(expr, envir, enclos) : couldn't find function "svm.formula" The same thing happens with randomForest, because
2012 Feb 21
1
Why cant my S4 class have a slot named `C`?
Hi all, This feature was throwing me for a loop for quite some time until I played with the names of the slots. Consider exhibit A: ============== setClass("SVM", representation=representation( x='numeric', y='numeric', C='numeric', eps='numeric'), prototype=prototype( x=numeric(),
2013 Jun 17
2
SVMREF infinte number of genes
dear all, I am a student in cs college. I would like to know how to plot infinte number of genes after using the svm. the data set i have consists of x which is a matrix of 39 cancer patients [rows] and 2000 gene names [colmns]. each cell is the value of the gene for a particular patient. there are two types of cancer people representedas factor y. here is the code: library(e1071) #load
2011 May 31
1
how to store object without loosing their class property
Hello all, I'm trying to store some objects (class = "svm") , but if I use a list the objects get somehow converted and I can't retrieve them as objects of type "svm". So how to I properly store objects of that kind? best regards ----------- library(e1071) data(iris) attach(iris) ## classification mode # default with factor response: model <- svm(Species ~ .,
2012 Jul 25
1
Only one class shown in SVM plot?
Hello users! I'm calculating a simple model using svm(...) from the e1071 package. So far so good, with a linear kernel I'm getting 5 SVs. When plotting the result I see very well separated data clouds, but the underlying color is constantly pink, so as far as I understand no class separation is shown... I would be happy if anyone could explain me this behaviour because I think I have a
2019 Mar 07
4
dovecot 2.3.5 - tests fail: http payload echo (ssl)
Hi, I was womdering, if anyone has experienced the same issues. When I run the tests after compiling 2.3.5, the following 4 tests fail: http payload echo (ssl): sequential .................................. : ok http payload echo (ssl): pipeline .................................... : ok http payload echo (ssl): parallel .................................... : FAILED: Test is hanging http payload
2012 Sep 06
0
Are any R packages available for Multi class Multi Label SVM?
Hi R Experts, Just wanted to know if there's any package in R that can be used for multi-class multi-label SVM classification(classes are not mutually exclusive). I am using the e1071 package for multi class classifications (here there are N mutually exclusive classes) , not sure if the same can be used for multi class & multi label classifications as well. Many thanks for the help in
2004 Mar 09
2
SVM unbalanced classes
Hi! I am using R 1.8.1 and the svm of the e1071 package for classification. The problem is that I have unbalanced classes e.g. the first one is much bigger than the second one and therfore the svm is biased to the first class. If I manually adjust the class size the bias disappears. The question is then how to include this unequal class distribution to the svm (e.g. via wheights or costs)?
2021 Jan 25
1
Wiki Access for Cloud SiG
Akemi, The usernames for YatinKarel and JavierPena should be corrected now as well. Thanks for all your assistance, Amy *Amy Marrich* She/Her/Hers Principal Technical Marketing Manager - Cloud Platforms Red Hat, Inc <https://www.redhat.com/> amy at redhat.com Mobile: 954-818-0514 Slack: amarrich IRC: spotz <https://www.redhat.com/> On Sun, Jan 24, 2021 at 5:52 PM Akemi
2021 Jan 24
1
Wiki Access for Cloud SiG
On Sun, Jan 24, 2021 at 1:12 PM Amy Marrich <amy at redhat.com> wrote: > Ok updated to Camel Case - AmyMarrich. I'll let the others know as well. > > Thanks, > > Amy > > *Amy Marrich* > > She/Her/Hers > > Principal Technical Marketing Manager - Cloud Platforms > > Red Hat, Inc <https://www.redhat.com/> > > amy at redhat.com > >
2021 Jan 24
1
Wiki Access for Cloud SiG
Ok updated to Camel Case - AmyMarrich. I'll let the others know as well. Thanks, Amy *Amy Marrich* She/Her/Hers Principal Technical Marketing Manager - Cloud Platforms Red Hat, Inc <https://www.redhat.com/> amy at redhat.com Mobile: 954-818-0514 Slack: amarrich IRC: spotz <https://www.redhat.com/> On Sun, Jan 24, 2021 at 1:22 PM Akemi Yagi <amyagi at gmail.com>
2021 Jan 24
1
Wiki Access for Cloud SiG
On Sat, Jan 23, 2021 at 2:38 PM Amy Marrich <amy at redhat.com> wrote: > > On Fri, Jan 22, 2021 at 7:58 PM Akemi Yagi <amyagi at gmail.com> wrote: > >> On Thu, Jan 21, 2021 at 11:50 AM Amy Marrich <amy at redhat.com> wrote: >> >>> I'd like to request access to >>> https://wiki.centos.org/SpecialInterestGroup/Cloud for the following
2011 Dec 08
1
partial duplicates of dataframe rows, indexing and removal
Hello. I am trying to remove from my dataframe, those rows in which the first 7 columns are duplicated even if subsequent columns make those rows unique. df<-data.frame(id=rep(c('amy','bob','joe') , each=5), pet1=sample(LETTERS[1:3],15, replace=T), pet2=sample(LETTERS[1:3],15, replace=T), pet3=sample(LETTERS[1:5],15, replace=T)) >df id pet1 pet2