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Type 'q()' to quit R. > > RNGversion("3.5.2") Warning message: In RNGkind("Mersenne-Twister", "Inversion", "Rounding") : non-uniform 'Rounding' sampler used > set.seed(290875) > library("party") Loading required package: grid Loading required package: mvtnorm Loading required package: modeltools Loading required package: stats4 Loading required package: strucchange Loading required package: zoo Attaching package: 'zoo' The following objects are masked from 'package:base': as.Date, as.Date.numeric Loading required package: sandwich > if (!require("TH.data")) + stop("cannot load package TH.data") Loading required package: TH.data Loading required package: survival Loading required package: MASS Attaching package: 'TH.data' The following object is masked from 'package:MASS': geyser > if (!require("coin")) + stop("cannot load package coin") Loading required package: coin > > data("GlaucomaM", package = "TH.data") > rf <- cforest(Class ~ ., data = GlaucomaM, control = cforest_unbiased(ntree = 30)) > stopifnot(mean(GlaucomaM$Class != predict(rf)) < + mean(GlaucomaM$Class != predict(rf, OOB = TRUE))) > > data("GBSG2", package = "TH.data") > rfS <- cforest(Surv(time, cens) ~ ., data = GBSG2, control = cforest_unbiased(ntree = 30)) > treeresponse(rfS, newdata = GBSG2[1:2,]) $`1` Call: survfit(formula = y ~ 1, weights = weights) records n events median 0.95LCL 0.95UCL [1,] 146 30 15.9 1753 1481 NA $`2` Call: survfit(formula = y ~ 1, weights = weights) records n events median 0.95LCL 0.95UCL [1,] 148 30 13.4 1975 1343 2018 > > ### give it a try, at least > varimp(rf, pre1.0_0 = TRUE) ag at as an ai 0.0000000000 -0.0023148148 0.0009259259 0.0009259259 0.0078703704 eag eat eas ean eai 0.0000000000 0.0000000000 0.0000000000 0.0013888889 -0.0009259259 abrg abrt abrs abrn abri 0.0000000000 0.0000000000 0.0032407407 0.0027777778 0.0041666667 hic mhcg mhct mhcs mhcn 0.0060185185 0.0000000000 0.0013888889 -0.0004629630 0.0027777778 mhci phcg phct phcs phcn 0.0078703704 0.0060185185 0.0000000000 0.0004629630 0.0018518519 phci hvc vbsg vbst vbss 0.0166666667 0.0032407407 0.0032407407 0.0013888889 0.0000000000 vbsn vbsi vasg vast vass 0.0000000000 0.0000000000 0.0000000000 0.0000000000 0.0000000000 vasn vasi vbrg vbrt vbrs 0.0000000000 0.0046296296 0.0000000000 0.0018518519 0.0004629630 vbrn vbri varg vart vars 0.0032407407 0.0004629630 0.0351851852 0.0000000000 0.0245370370 varn vari mdg mdt mds 0.0129629630 0.0481481481 0.0000000000 0.0000000000 -0.0013888889 mdn mdi tmg tmt tms 0.0000000000 0.0000000000 0.0273148148 0.0000000000 0.0097222222 tmn tmi mr rnf mdic -0.0023148148 0.0226851852 0.0000000000 0.0037037037 0.0055555556 emd mv 0.0000000000 -0.0009259259 > > P <- proximity(rf) > stopifnot(max(abs(P - t(P))) == 0) > > P[1:10,1:10] 2 43 25 65 70 16 6 2 1.0000000 0.26666667 0.7666667 0.20000000 0.10000000 0.13333333 0.70000000 43 0.2666667 1.00000000 0.2000000 0.03333333 0.06666667 0.36666667 0.23333333 25 0.7666667 0.20000000 1.0000000 0.26666667 0.10000000 0.10000000 0.76666667 65 0.2000000 0.03333333 0.2666667 1.00000000 0.00000000 0.03333333 0.33333333 70 0.1000000 0.06666667 0.1000000 0.00000000 1.00000000 0.23333333 0.06666667 16 0.1333333 0.36666667 0.1000000 0.03333333 0.23333333 1.00000000 0.10000000 6 0.7000000 0.23333333 0.7666667 0.33333333 0.06666667 0.10000000 1.00000000 5 0.5333333 0.06666667 0.6000000 0.46666667 0.10000000 0.06666667 0.63333333 12 0.5000000 0.06666667 0.5000000 0.50000000 0.10000000 0.06666667 0.53333333 63 0.4666667 0.23333333 0.5000000 0.23333333 0.16666667 0.13333333 0.56666667 5 12 63 2 0.53333333 0.50000000 0.4666667 43 0.06666667 0.06666667 0.2333333 25 0.60000000 0.50000000 0.5000000 65 0.46666667 0.50000000 0.2333333 70 0.10000000 0.10000000 0.1666667 16 0.06666667 0.06666667 0.1333333 6 0.63333333 0.53333333 0.5666667 5 1.00000000 0.83333333 0.4333333 12 0.83333333 1.00000000 0.5000000 63 0.43333333 0.50000000 1.0000000 > > ### variable importances > a <- cforest(Species ~ ., data = iris, + control = cforest_unbiased(mtry = 2, ntree = 10)) > varimp(a, pre1.0_0 = TRUE) Sepal.Length Sepal.Width Petal.Length Petal.Width 0.06181818 0.00000000 0.20727273 0.33636364 > varimp(a, conditional = TRUE) Sepal.Length Sepal.Width Petal.Length Petal.Width 0.007272727 0.000000000 0.103636364 0.243636364 > > airq <- subset(airquality, complete.cases(airquality)) > a <- cforest(Ozone ~ ., data = airq, + control = cforest_unbiased(mtry = 2, ntree = 10)) > varimp(a, pre1.0_0 = TRUE) Solar.R Wind Temp Month Day 137.76700 550.19004 295.40387 16.21802 5.42690 > varimp(a, conditional = TRUE) Solar.R Wind Temp Month Day 67.713060 341.413307 227.670123 4.257196 3.204209 > > data("mammoexp", package = "TH.data") > a <- cforest(ME ~ ., data = mammoexp, control = cforest_classical(ntree = 10)) > varimp(a, pre1.0_0 = TRUE) SYMPT PB HIST BSE DECT 0.02466021 0.01046237 0.01607246 0.01045324 0.00133305 > varimp(a, conditional = TRUE) SYMPT PB HIST BSE DECT 0.019882337 0.009532482 0.006163146 0.007732481 0.003382481 > > stopifnot(all.equal(unique(sapply(a@weights, sum)), nrow(mammoexp))) > > ### check user-defined weights > nobs <- nrow(GlaucomaM) > i <- rep(0.0, nobs) > i[1:floor(.632 * nobs)] <- 1 > folds <- replicate(100, sample(i)) > rf2 <- cforest(Class ~ ., data = GlaucomaM, control = cforest_unbiased(ntree = 100), weights = folds) > table(predict(rf), predict(rf2)) glaucoma normal glaucoma 89 4 normal 1 102 > > proc.time() user system elapsed 4.00 0.32 4.31