search for: evtree

hi I got the following error in 'evtree'. could u help pl. Error in if (var(mf[, nVariables]) <= 0) stop("variance of the denpendent variable is 0") : argument is of length zero [[alternative HTML version deleted]]

Muy buenas; mi primera consulta. Utilizo rpart (con as.party) y evtree, para obtener árboles de clasificación. Los represento en una windows() aparte, pero cuando el árbol es un poco grande, las hojas quedan muy estrechas y no se ven los porcentajes. ¿Sabéis como hacer que todo el árbol sea más pequeño para que las hojas no queden como simples líneas? Gracias...

...is to extract the names of those variable that were shown to be relevant in the chaid() results. The chaid() output is in the form of a constparty object. My question is how to extract the variable names associated with the nodes in such an object. Here is a self contained code example: library(evtree) # for the ContraceptiveChoice dataset library(CHAID) library(vcd) library(MASS) data("ContraceptiveChoice") longform <- formula(contraceptive_method_used ~ wifes_education + husbands_education + wifes_religion + wife_now_working + husbands_occupatio...

...mGLM","msaenet"," > Rborist","relaxo","ordinalNet","rrf","frbs","extraTrees"," > ipred","elasticnet","bst","brnn","Boruta","arm","elmNN"," > evtree","extraTrees","deepnet","kknn","KRLS","RSNNS","partDSA","plsRglm"," > quantregForest","ranger","inTrees") > >> new.packages <- list.of.packages[!(list.of.packages %in% > >&g...

...;msaenet"," >> Rborist","relaxo","ordinalNet","rrf","frbs","extraTrees"," >> ipred","elasticnet","bst","brnn","Boruta","arm","elmNN"," >> >evtree","extraTrees","deepnet","kknn","KRLS","RSNNS","partDSA","plsRglm"," >> quantregForest","ranger","inTrees") >> >> new.packages <- list.of.packages[!(list.of.packages %in% &gt...

...-27), cccrm (1.1), censReg (0.5-10), cherry (0.2-6), coefplot (1.1.7), coloc (1.08), CompRandFld (1.0.2), ConjointChecks (0.0.7), copula (0.99-1), crawl (1.3-4), deseasonalize (1.03), digeR (1.3), DistributionUtils (0.5-1), effects (2.1-1), elec.strat (0.1.1), ElemStatLearn (2012.04-0), EVER (1.2), evtree (0.1-2), fanovaGraph (1.1), gbm (1.6-3.2), GeneralizedHyperbolic (0.8-0), GGEBiplotGUI (1.0-1), ggmap (2.0), growcurves (0.1.1), gWidgetsRGtk2 (0.0-81), hash (2.1.0.1), HiddenMarkov (1.7-0), ISIPTA (0.1-7), lavaan (0.4-13), lcmm (1.5.1), lifecontingencies (0.9.2), LIHNPSD (0.2.1), LMERConvenienceFu...