similar to: reg cross validation in svm

Hi How can i get ROC for svm during modelling in SVM. how to plot the values thanks karthik On 2/16/06, karthi keyan <gkkarthikeyann@gmail.com> wrote: > > Hi > My name is karthikeyan. > > I am using svm in R for my data set. > > my data set contain 60 finance ratio as variables and i want to classify > into group of good and bad. > > I want to know

Hi All: I am clustering 500 genes using hclust of R. Visualizing cluster membership becomes difficult with so many genes in each cluster...Is there a way of printing the dendrogram in multiple pages so that I can clearly see what is in each cluster? Thanks in advance. Karthi.

Hi everyone, Can someone please help me in these questions?: 1)if I use crossvalidation with svm, do I have to use this equation to calculate RMSE?: mymodel <- svm(myformula,data=mydata,cross=10) sqrt(mean(mymodel$MSE)) But if I don’t use crossvalidation, I have to use the following to calculate RMSE: mymodel <- svm(myformula,data=mydata) mytest

Hello, Thank you for probably not so new question, but i am new to R. Does any of packages have something like glm+regularization? So far i see probably something close to that as a ridge regression in MASS but I think i need something like GLM, in particular binomial regularized versions of polynomial regression. Also I am not sure how some of the K-fold crossvalidation helpers out there

Rails, I have problem. I am validating fields of a class, if validation fails i use the method error.add "Say something" , but when I test my form by giving a invalid entry, I get error output as "Say something is invalid" and not as "Say something". I really dont know where from this "is invalid" pops in. Any help? Thanks in advance Karthikeyan A K --

Hello Group, I am a PHP programmer eager to use Rails. I want to know weather there is any tutorials on how to use Dojo with Rails? I checked out d-rails Google Group, it was in mess! It gives me a impression that d-rails is dead. Is there there any good and possibly easy and reliable way to use Dojo in Rails? Regards A.K.Karthikeyan

Hi, Iam using Red hat linux 6.1 with samba version 2.0.7 .I had compiled and used it,and also used the patch given for smbmount.c by Urban.But Strangely the smbmount version is still version 2.0.5a.Is this the correct version for smbmount since i thought when i upgraded samba from 2.0.5a to 2.0.7 smbmount would also be upgraded.Because iam still facing some problems in using smbmount.If iam

My previous question put in a simpler way: How would I pass a value of a variable to a function such as lm(Effect1~Trt*Dose, data = x, contrasts = list(Trt = contr.sum, Dose = contr.sum))? Here, 'Effect' is a column name in my data matrix, and I want "Effect1" to be replaced by "Effect2" and so on (my other column names in the data frame) for successive anova

Hi, perhaps you can help me to find out, how to find the best Lambda in a LASSO-model. I have a feature selection problem with 150 proteins potentially predicting Cancer or Noncancer. With a lasso model fit.glm <- glmpath(x=as.matrix(X), y=target, family="binomial") (target is 0, 1 <- Cancer non cancer, X the proteins, numerical in expression), I get following path (PICTURE

Hi, Can anybody list out what are all the exceptions available in ROR? Thanks in advance... Karthik. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

Could anyone help with a linear mixed model fitting problem ? The model is : Y= Xp + Zu + e where X, Z are known design matrix, p is fixed effect factor, u is random effect, u~ (0, G) , e~(0,R) The main problem is , I want to fix the covariance matrix G to be a constant times a known covariance matrix A, G = c*A (c is positive constant, A is a predefined matrix with values manually set by

Dear R-experts, Here below my R code with an error message. Can somebody help me to fix this error?? Really appreciate your help. Best, ############################################################ #?MSE CROSSVALIDATION Lasso regression? library(glmnet) ?

No error message shown Please include the error message so that it is not necessary to rerun your code. This might enable someone to see the problem without running the code (e.g. downloading packages, etc.) -- Bert On Sun, Oct 22, 2023 at 1:36?PM varin sacha via R-help <r-help at r-project.org> wrote: > > Dear R-experts, > > Here below my R code with an error message. Can

Hi, another question about validate() in Design library. The arugment "B" of this function is number of repetition for method="bootstrap", which is easy to understand; but for method="crossvalidation", B is the number of groups of omitted observations. This is confusing, I don't understand what it means. Let's say 5-fold cross validation, all samples are

Hi, Users, I am a new user. I am trying to partition data into training and test. Is there any R package or function that can partition dataset? Also, is there any package do crossvalidation? Any help will be appreciated. Best, Pat [[alternative HTML version deleted]]

hi all, i am new to r , i am trying to run data mining algorithms using map reduce framework.. * *i have few basic doubts* *1. can i give file in hdfs to kmeans( ) ? ?I tried as > file1 = hdfs.file("testdata/synthetic_control.data") > isf = hdfs.read(lsf,5242880,0) >l = kmeans(isf,2,10) its not working.. please help 2. How to access the file in hdfs and give as input to

I am starting to use svm from e1071 and I wonder how exactly crossvalidation is implemented. Whenever I run > svm.model <- svm(y ~ ., data = trainset, cross = 3) on my data I get dirrerent values for svm.model$MSE e.g. [1] 0.9517001 1.7069627 0.6108726 [1] 0.3634670 0.9165497 1.4606322 This suggests to me that data are scrambled each time - the last time I looked at libsvm python

Dear R-list! I am using the e1071 package in R to solve a binary classification problem in a dataset of round 180 predictor variables (blood metabolites) of two groups of subjects (patients and healthy controls). I am confused regarding the correct way to assess the classification accuracy of the trained svm. (A) The svm command allows to specificy via the 'cross=k' parameter to specify a

I currently have a program that automates 2-way ANOVA on a series of endpoints, but before the ANOVA is carried out I want the code to test the assumptions of normality and equal variance and report along with each anova result in the output file.  How can I do this? I have pasted below the code that I currently use.   library(car) numFiles = x #

Hi everyone, hi have a similar problem in a view: <div id="content">...</div> <a href="javascript:void(0)" onClick="Effect.Toggle(''content'');">Hide/show content</a> I would like the page to "remember" that the div has been hidden after a page reload. (The div comes up always visible even if it was set to hidden