R 当试图使用H2o包时,插入符号训练方法会出现问题:“使用;有点不对劲;所有精度度量值均缺失“;
在本例中,当我想在插入符号中使用H2o方法时,我收到一条错误消息:R 当试图使用H2o包时,插入符号训练方法会出现问题:“使用;有点不对劲;所有精度度量值均缺失“;,r,r-caret,h2o,R,R Caret,H2o,在本例中,当我想在插入符号中使用H2o方法时,我收到一条错误消息: library(caret) library(h2o) data(HELPrct) ds = HELPrct fitControl= trainControl(method="repeatedcv", number = 5) ds$sub = as.factor(ds$substance) h2oFit1 <- train(homeless ~ female + i1 + sub + sexrisk
library(caret)
library(h2o)
data(HELPrct)
ds = HELPrct
fitControl= trainControl(method="repeatedcv", number = 5)
ds$sub = as.factor(ds$substance)
h2oFit1 <- train(homeless ~ female + i1 + sub + sexrisk + mcs + pcs,
trControl=fitControl,
method = "gbm_h2o",
data=ds[complete.cases(ds),])
有人知道我如何使插入符号与h2o一起工作吗?其他方法不会产生任何问题。如果我运行您的代码并检查警告:
warnings()
Warning messages:
1: model fit failed for Fold1.Rep1: max_depth=1, ntrees= 50, learn_rate=0.1, min_rows=10, col_sample_rate=1 Error in h2o.getConnection() :
No active connection to an H2O cluster. Did you run `h2o.init()` ?
因此,您需要执行h2o.init()
(有关更多详细信息,请查看):
库(插入符号)
图书馆(h2o)
h2o.init()
ds=马赛克数据::HELPrct
fitControl=列车控制(方法=“repeatedcv”,编号=5)
ds$次级=作为系数(ds$物质)
h2oFit1如果我运行您的代码并检查警告:
warnings()
Warning messages:
1: model fit failed for Fold1.Rep1: max_depth=1, ntrees= 50, learn_rate=0.1, min_rows=10, col_sample_rate=1 Error in h2o.getConnection() :
No active connection to an H2O cluster. Did you run `h2o.init()` ?
因此,您需要执行h2o.init()
(有关更多详细信息,请查看):
库(插入符号)
图书馆(h2o)
h2o.init()
ds=马赛克数据::HELPrct
fitControl=列车控制(方法=“repeatedcv”,编号=5)
ds$次级=作为系数(ds$物质)
h2oFit1
library(caret)
library(h2o)
h2o.init()
ds = mosaicData::HELPrct
fitControl= trainControl(method="repeatedcv", number = 5)
ds$sub = as.factor(ds$substance)
h2oFit1 <- train(homeless ~ female + i1 + sub + sexrisk + mcs + pcs,
trControl=fitControl,
method = "gbm_h2o",
data=ds[complete.cases(ds),])
h2oFit1
Gradient Boosting Machines
117 samples
6 predictor
2 classes: 'homeless', 'housed'
No pre-processing
Resampling: Cross-Validated (5 fold, repeated 1 times)
Summary of sample sizes: 93, 94, 93, 94, 94
Resampling results across tuning parameters:
max_depth ntrees Accuracy Kappa
1 50 0.5826087 0.0669072
1 100 0.6253623 0.1895957
1 150 0.6420290 0.2188447
2 50 0.6159420 0.1708235
2 100 0.6072464 0.1513658
2 150 0.6329710 0.2035319
3 50 0.6253623 0.1878658
3 100 0.6159420 0.1701928
3 150 0.6420290 0.1761487