similar to: Giving column names to a matrix

Dear members of R-list, I need to reproduce the rules of a decision tree. For that I need to use the csplit information from the rpart.object. But I cannot uderstand the information because from my example I get: > rpart.tree$csplit [,1] [,2] [,3] [,4] [,5] [,6] [,7] [1,] 1 3 3 1 3 3 3 [2,] 2 3 3 1 2 2 2 [3,] 1 3 3 1 3 3 3

Hello, I have the following problem: test is a data frame with 9 fields. The field test$Date is factorized with dates. The format is dd-mm-yyyy (using Oracle notation). I want to convert this to Date in '%Y-%m-%d format. What I am doing is: for (i in 1:nrow(test)) { test[i,]$Data<-strptime(substring(test[i,]$Data,1,10),"%d-%m-%Y") } test is a data frame. The error is:

Dear mailinglist members, I have the following problem: I run a decision tree using the rpart function and, afterwords, I try to find to which leaf node a new register (not used to build the decision tree) belongs to. I will try to explain better: rpart.tree <- rpart(target.value ~., data) leaf.node <- new.function(rpart.tree, new.register) The new register has all the explanatory values

Hello, I want to create a data.frame with different number of columns per line. What I want is something like: example <- NULL begin <- 1 while (end < nrow(orig.data)) { end <- next.day(orig.data,begin) # my own function. It returns the first index from the next day. Each day has a different number of records. example <- rbind(example, c(begin, end, predictions[c(begin:end)],

Dear all, I have been doing tests using SVM, random forests and PPR. The data is from a data stream (that is, the data for training and for test is always increasing / changing). With SVM and random forests everything is ok, but with ppr there are situations where it crashes. For the examples I have used I noticed that if one of the variables has just one value (it can happen), it crashes for

Hello, As far I saw in archive mailing list, I am not the first person with this problem. Anyway I was not able to pass this error once the information I got from the archive it is not very conclusive for this case. I have used linear, radial and sigmoid kernels for the same data in the same conditions and everything is ok. This problem just happens with the polynomial kernel. I send the

Hello to everybody, Does anyone has implemented a function for evaluating models using windowing strategies, such as growing window or sliding window ones? The aim is to evaluate regression models on a time series data. I do not use cross-validation once data sorted in a radom way does not make sense when evaluating time series. Thanks Joao Moreira

Hello, I am doing intensive tests on SVMs parameter selection. Once a while I got the error: Error in save.image(): image could not be renamed and is left in .RDataTmp1 I cannot use the information saves in .RDataTmp1. When that happens I loose several hours of tests. It happens, ussualy when the computer is locked, i.e., there is not other relevant processes running on. I can do tests and get

Hi list, I'm trying to do a domain migration using the imapc feature, but i'm having some problems and I really don't know what is happening. So if you guys could help me with a path to solve this, I will be glad. I'm using Dovecot 2.1.7 in a Debian Wheezy machine. The command I'm using is: dsync -Dv -o imapc_features=rfc822.size -o imapc_host=IP -o imapc_port=143 -o

Nomes dos aprovados Maragogi: Alcin?polis: ANAHISA PEDROSA VITALINO, LUCAS BEZERRA DE MESQUITA, GABRIELLE DE MOURA FERREIRA, RACHEL CABRAL MOTA, JO?O CARLOS MOREIRA DE CARVALHO, DEBORA BEZERRA DE BRITO, MARIA KRYSLANE CARDOSO LEMOS, JOAO PEDRO ALEXANDRE SILVA MOTA. TALYTA MARTINS NEVES, CAIO BRITO BARREIRA, MADSON SANTOS MONTEIRO, IAGO FILLIPI PATROCINIO MACEDO, RITA DE CASSIA GADELHA DA SILVA.

Rela??o de aprovados Mar Vermelho: ?gua Clara: ANA PAULA RODRIGUES DA SILVA, LUCAS ARAUJO GOMES FROTA, GABRIEL VICTOR BARROS FORTE DA SILVA, QUIT?RIA DA SILVA G?IS, JO?O CARLOS MOREIRA DE CARVALHO, DAYANA MARIA DE SOUSA TAVARES, MARIA JULIENE CORDEIRO, JO?O PAULO DA SILVA. TALITA FERNANDES GONCALVES, BRUNO RAMOS FERNANDES, LUIZ HENRIQUE ALVES DAMASCENO, IAGO DA SILVA NOBRE, RITA ANGELA DA SILVA.

Rela??o de aprovados Japaratinga: Tapurah: ANA CAROLINE LIMA VASCONCELOS, L?VIO CHAVES D?D?, FRANCISCO JACKSON DE FREITAS SOUZA, PAULO WILLAME ARAUJO DE LIMA, JO?O CARLOS MOREIRA DE CARVALHO, DAMI?O ROCHA DOS SANTOS J?NIOR, MARIA HELENA DE OLIVEIRA SILVA, JARDEL DE LIMA NOBRE. SILVANA BEZERRA DA SILVA, ARIELA DE MACEDO RICARDO, LUCAS PINTO ASSUNCAO, GLAUCIO VALENCA PEREIRA RANGEL, REBECA FARIAS

Lista dos aprovados em vestibular Junqueiro: Vale de S?o Domingos: ANA L?CIA MENDES DOS SANTOS, LUANA FELIX BIE, FRANCISCO PAULO DE OLIVEIRA MESQUITA, POLLIANA BRASILIANA DE SIQUEIRA, JO?O CARLOS MOREIRA DE CARVALHO, DANIELE SILVA OLIVEIRA, MARIA JOS? BATISTA LEITE, J?SSICA MAYARA P. PAULINO. SOLANGE FERREIRA ANDRADE, BRENA RODRIGUES MACIEL, LUIS FABRICIO DE FREITAS SOUZA, H?LIO BARROS FERREIRA,

Lista aprovados Maravilha: Amamba?: ANDERSON BEZERRA MOURAO, LUCAS CAULA ALBUQUERQUE, GEILSON HOLANDA SAMPAIO, RAFAEL FERNANDES, JO?O CARLOS MOREIRA DE CARVALHO, DEBORA CRISTINA SCHNORNBERGER, MARIA MACLENE BEZERRA LIMA, JOAO PEDRO TAVARES MAGALHAES. TAMYRES AMORIM SOUZA, CAIO CESAR FERNANDES LOPES, MAGNUN SANTOS FREDERICO, IAGO SIMOES CALIARI, RITA MARIA SILVA ALMEIDA. Pedreiras. Maravilha,

Aprovados rela??o publicada Joaquim Gomes: Torixor?u: ANA FL?VIA DA SILVA, LUAN MARLLUS MAIA RAULINO, FRANCISCO MARIO ROCHA DE MELO, PEDRO IGOR GARCIA COSTA, JO?O CARLOS MOREIRA DE CARVALHO, DANIEL GUIMARAES CORDEIRO, MARIA IVONEIDE DE OLIVEIRA NASCIMENTO, JESICA FREITAS E SILVA. SILVONEIDE DE O, AYSLAN CORDEIRO DO SANTIAGO, LUCIANA SOARES F. DA SILVA, HARIANNE LEITE DE ALENCAR, REJANE SANTA

Hello, I am feeling that this question can have a very simple answer, but I can't find it. I need to use the function knn.dist from knnflex library. Whatever I try, I get the error: Error in as.vector.dist(x, "character") : unused argument(s) ("character") First example: > a<-NULL > a<-rbind(a,c(5.2,-8.1)) > a<-rbind(a,c(8.8,-16.1)) >

Hello, Realized update dovecot on my server. Now the search is returning differently from the previous version bringing reference information of other messages . For example when doing a search for anderson.joao this new version of the dovecot dovecot 2.2.21 + fts - Solr response will be all email that has the word anderson and joao, instead of returning only items with the word anderson.joao.

Hello I have an old Asterisk where I need to listen to Agent calls. So I created this code: exten => _555,1,ChanSpy(Agent) exten => _555,n,Hangup() But I always get: 2009-10-22 16:00:38 WARNING[5695]: pbx.c:1720 pbx_extension_helper: No application 'ChanSpy' for extension (default, 555, 1) It seems that Asterisk doesn't have ChanSpy enabled... is this possible? Which

Hello I'm trying to use an AGI that returns the queues status (numbers of available agents, etc ), but I'm having some problems with it (it's still very buggy). Is there any AGI repository with source code samples? Had anyone used an AGI to check queues and agents status? Thanks regards Joao Pereira -- StarTel - A Rede Livre Joao Gomes Pereira www.startel.pt +351 304500650 sip:

Hello I'm trying to register an Asterisk working behind Nat. Here is the trunk: register=username:password at sip.startel.pt [startel] type=peer host=sip.startel.pt username=username fromuser=username secret=password qualify=yes disallow=all allow=ulaw allow=alaw allow=gsm insecure=very port=5060 nat=yes canreinvite=yes The problem is: Asterisk is registering with its