Displaying 4 results from an estimated 4 matches for "nancyadam84".
2009 Dec 16
0
Read dataset in R language
...post it is impossible to
really tell).
Giovanni
Giovanni Millo
Research Dept.,
Assicurazioni Generali SpA
Via Machiavelli 4,
34132 Trieste (Italy)
tel. +39 040 671184
fax +39 040 671160
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Original Message
Date: Wed, 16 Dec 2009 12:26:03 +0200
From: Nancy Adam <nancyadam84 at hotmail.com>
Subject: Re: [R] Read dataset in R language.
To: <ehlers at ucalgary.ca>
Cc: r-help at r-project.org
Message-ID: <SNT122-W4335798ADCADAC8E0F70A0B1870 at phx.gbl>
Content-Type: text/plain
Hi all,
I tried many things to read any dataset but I receive different error...
2009 Dec 27
1
svm regression/classification
Hi everyone,
Can anyone please tell whether there is a difference between the code for using svm in regression and code for using svm in classification?
This is my code for regression, should I change it to do classification?:
train <- read.table("trainingset.txt",sep=";")
test <- read.table("testset.txt",sep=";")
svmmodelfitness <-
2010 Jan 01
1
Questions bout SVM
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
2009 Dec 15
2
read dataset in R language.
Hi,
Could you please help me in solving the following error message:
Error in `[.data.frame`(mytestdata, fp_temp == 1) :
undefined columns selected
when I use scan instead on read.table, I reicieve this message:
Error in names(ret2) <- rowns :
'names' attribute [172] must be the same length as the vector [152]
Many thanks,
Nancy