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簽到天數: 152 天 [LV.7]常住居民III - 推廣值
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lrns = list(6 @; O* i$ ~4 p3 j7 L9 q& D2 f- A6 y
makeLearner("classif.lda", id = "lda"),
* e) W4 U' p% ]) y! k makeLearner("classif.rpart", id = "rpart"),
, [6 s2 z, ?0 ~& z- V makeLearner("classif.randomForest", id = "randomForest")
. N+ y: e6 }" z' ^)
& y; z- C2 s4 A" P
g3 `( |; ?* i# r, ?## Get additional Tasks from package mlbench
# l; y) e! S& ?+ I4 m9 k) T9 X; rring.task = convertMLBenchObjToTask("mlbench.ringnorm", n = 10)% J2 d% I* t ?# O9 L5 o
wave.task = convertMLBenchObjToTask("mlbench.waveform", n = 10)- c0 }1 N3 O% z6 b4 V6 q6 o L3 m" w0 g
- ^" B' C% J+ x. s5 z$ @) H* Xtasks = list(iris.task, sonar.task, pid.task, ring.task, wave.task); S9 Z1 I" p a7 f' {; I0 C
rdesc = makeResampleDesc("CV", iters = 3), H5 n1 _8 E- \& M$ I5 b
meas = list(mmce, ber, timetrain)
5 [0 F% Q7 x* |+ B2 M. \bmr = benchmark(lrns, tasks, rdesc, meas, show.info = FALSE)# @6 o, e- \% Q3 _8 K7 Y7 i7 L+ S
bmr+ x3 |8 U$ j1 U/ H4 h& @5 F
plotBMRBoxplots(bmr, measure = ber, style = "violin", pretty.names = FALSE) +
. D7 g# |8 v/ d5 s* I$ A aes(color = learner.id) +
0 h! ?2 [6 Y# J6 z8 y2 r theme(strip.text.x = element_text(size = 8)) |
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