尝试在调用“train”（）的执行过程之前获取r输出 [英] attempting to obtain r output before invoking execution process for "train"()

问题描述

尝试运行此代码导致以下错误"尝试在调用执行过程之前获取r输出"

rpart.cv.1 = train（Label~。 ，data = test_tokens.df，method =" rpart"，

           trControl = cv.cntrl，tuneLength = 7）

完整代码

库（插入符号）

＃test_tokens.df = cbind（Label = test_data $ Sentiment，as.data.frame（test_token_matrix））

#names（test_tokens .df）< - make.names（names（test_tokens.df））

set.seed（48743）

cv.folds = createMultiFolds（test_data $ Sentiment，k = 10，次= 3）

cv.cntrl = trainControl（method =" repeatedcv"，number = 10，repeats = 3，index = cv.folds）

#install.packages（" doSNOW"）

library（doSNOW）

start.time = Sys.time（）



cl = makeCluster（2，type =" SOCK"）

registerDoSNOW（cl）



rpart.cv.1 = train（标签〜。，data = test_tokens.df，method =" rpart"，

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   trControl = cv.cntrl，tuneLength = 7）



stopCluster（cl）



总时间= Sys.time（） - start.time

总时间



rpart.cv.1

解决方案

您好，

您似乎正在尝试安装一些已预装在Azure Machine Learning Studio中的软件包。能帮我们检查吗？

问候，

宇通

trying to run this code is causing the following error "attempting to obtain r output before invoking execution process"

rpart.cv.1 = train(Label ~ .,data = test_tokens.df,method = "rpart",
                   trControl = cv.cntrl, tuneLength = 7)

full code

library(caret)

#test_tokens.df= cbind(Label=test_data$Sentiment,as.data.frame(test_token_matrix))
#names(test_tokens.df) <- make.names(names(test_tokens.df))
set.seed(48743)
cv.folds = createMultiFolds(test_data$Sentiment,k = 10,times = 3)
cv.cntrl = trainControl(method = "repeatedcv", number = 10,repeats = 3, index = cv.folds)
#install.packages("doSNOW")
library(doSNOW)
start.time = Sys.time()

cl = makeCluster(2 ,type = "SOCK")
registerDoSNOW(cl)

rpart.cv.1 = train(Label ~ .,data = test_tokens.df,method = "rpart",
                   trControl = cv.cntrl, tuneLength = 7)

stopCluster(cl)

totaltime = Sys.time() - start.time
totaltime

rpart.cv.1

解决方案

Hi,

It seems that you are trying to install some packages which are already pre-installed in Azure Machine Learning Studio. Could you please help us to check?

Regards,

Yutong

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