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lrns = list(
, D0 {; k4 z7 s' W. c6 p makeLearner("classif.lda", id = "lda"),
" I* J$ J9 s9 Q5 F- b2 X2 ? x- c" p$ M makeLearner("classif.rpart", id = "rpart"),! b" n p3 b$ G d! Q9 \( N
makeLearner("classif.randomForest", id = "randomForest"). G4 v# o7 I- A; O, a L
)$ L, n1 K3 a; I# J; s3 g
% C6 i( b) Z, t## Get additional Tasks from package mlbench2 [4 S3 w) S% N! C. h6 i8 J$ y
ring.task = convertMLBenchObjToTask("mlbench.ringnorm", n = 10)
$ M' x1 b$ @) ?, E5 f+ q4 F. Ywave.task = convertMLBenchObjToTask("mlbench.waveform", n = 10)
! B/ C( J, }3 Q
, G9 T' a( S: x6 U& a9 W+ Ntasks = list(iris.task, sonar.task, pid.task, ring.task, wave.task)
0 U: Y- P9 k5 F5 h4 t# lrdesc = makeResampleDesc("CV", iters = 3)
t6 R% p- t# S5 k Omeas = list(mmce, ber, timetrain)$ S) ~& s! \3 A2 y7 a) B% [4 m; i, y& T
bmr = benchmark(lrns, tasks, rdesc, meas, show.info = FALSE)
+ p5 u. G2 x/ l' E) v, |bmr s+ \) [ p! t8 O, u
plotBMRBoxplots(bmr, measure = ber, style = "violin", pretty.names = FALSE) +
3 Y5 b8 @3 u* L1 |) i! f aes(color = learner.id) +; F8 q- I) m& e, G# P
theme(strip.text.x = element_text(size = 8)) |
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