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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(9 Y* J$ s. d6 {
makeLearner("classif.lda", id = "lda"),
) J7 ]( i, d6 W makeLearner("classif.rpart", id = "rpart"), B5 {6 y8 i; F$ m3 K5 \3 F6 x
makeLearner("classif.randomForest", id = "randomForest")
, E$ q9 q( d) g7 y2 h* M)9 Z; C. s) u" D$ K: z z A$ w6 D
5 |' O [5 t4 E6 y+ E: g4 V
## Get additional Tasks from package mlbench1 e ?! r4 u" j. ~
ring.task = convertMLBenchObjToTask("mlbench.ringnorm", n = 10)7 K d/ K: D% f( u7 ^% X$ z: |1 _
wave.task = convertMLBenchObjToTask("mlbench.waveform", n = 10). q% h! l$ B3 Y- y: W* q4 V/ u
+ k4 e; a, R; M* Y* [, c) ~
tasks = list(iris.task, sonar.task, pid.task, ring.task, wave.task)0 d% y: r9 u& w# M8 r
rdesc = makeResampleDesc("CV", iters = 3)
+ ^5 _$ F/ p# E% dmeas = list(mmce, ber, timetrain)( R" a" [' ?+ A+ O) r' }7 ^) x
bmr = benchmark(lrns, tasks, rdesc, meas, show.info = FALSE)
+ h4 u5 U% r/ d1 \( S$ N$ N$ jbmr
) [; n1 ]" E- |0 xplotBMRBoxplots(bmr, measure = ber, style = "violin", pretty.names = FALSE) +
% T/ c9 f+ C6 ~1 Q# U" \7 q aes(color = learner.id) +
- S1 ?3 r& g4 J' Z7 R+ G$ L7 G theme(strip.text.x = element_text(size = 8)) |
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