[R] Error in Rose Method (class balancing)

[Neha gupta]

Hello David, file not found should be the path problem I guess. I just
forgot the pROC library, which I included here. These are all the libraries
I am using.

library(caret)
library(farff)
library(DMwR)
library(pROC)
library(pls)

setwd("C:/Users/PC/Documents")
d=readARFF("bughunter.arff")
dput( head( d, 30 ) )

index <- createDataPartition(d$`Bug class`, p = .70,list = FALSE)

tr <- d[index, ]

ts <- d[-index, ]

boot3 <- trainControl(method = "repeatedcv", number=10,
repeats=10,classProbs = TRUE,verboseIter = FALSE,

summaryFunction = twoClassSummary, sampling = "rose")

set.seed(30218)

ct <- train(`Bug class` ~ ., data = tr, method = "pls", metric = "AUC", preProc
= c("center", "scale", "nzv"), trControl = boot3)

getTrainPerf(ct)


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On Thu, Jul 23, 2020 at 4:01 PM Neha gupta <neha.bologna90 using gmail.com> wrote:

>
> Hello David, thanks for your reply. I have added the information.
>
> library(caret)
> library(farff)
> library(DMwR)
>
> d=readARFF("bughunter.arff")
> dput( head( d, 30 ) )
>
> index <- createDataPartition(d$`Bug class`, p = .70,list = FALSE)
>
> tr <- d[index, ]
>
> ts <- d[-index, ]
>
> boot3 <- trainControl(method = "repeatedcv", number=10,
> repeats=10,classProbs = TRUE,verboseIter = FALSE,
>
> summaryFunction = twoClassSummary, sampling = "rose")
>
> set.seed(30218)
>
> ct <- train(`Bug class` ~ ., data = tr, method = "pls", metric = "AUC", preProc
> = c("center", "scale", "nzv"), trControl = boot3)
>
> getTrainPerf(ct)
>
> On Thu, Jul 23, 2020 at 1:08 AM David Winsemius <dwinsemius using comcast.net>
> wrote:
>
>>
>> On 7/22/20 3:43 PM, Neha gupta wrote:
>> > Hello,
>> >
>> >
>> > I get the following error when I use the ROSE class balancing method but
>> > when I use other methods like SMOTE, up, down, I do not get any error
>> > message.
>> >
>> >
>> > Something is wrong; all the ROC metric values are missing:
>> >
>> > ROC Sens Spec
>> >
>> > Min. : NA Min. : NA Min. : NA
>> >
>> > 1st Qu.: NA 1st Qu.: NA 1st Qu.: NA
>> >
>> > Median : NA Median : NA Median : NA
>> >
>> > Mean :NaN Mean :NaN Mean :NaN
>> >
>> > 3rd Qu.: NA 3rd Qu.: NA 3rd Qu.: NA
>> >
>> > Max. : NA Max. : NA Max. : NA
>> >
>> >
>> >
>> > library(DMwR)
>> >
>> > d=readARFF("bughunter.arff")
>>
>> After installing that package and loading pkg:DMwR I get:
>>
>>
>> Error in readARFF("bughunter.arff") : could not find function "readARFF"
>>
>>
>> Since you also posted in HTML, I suggest you read the Posting Guide,
>> restart and R session and post a reproducible example that loads all
>> needed packages and data.
>>
>> --
>>
>> David.
>>
>> >
>> > index <- createDataPartition(d$`Bug class`, p = .70,list = FALSE)
>> >
>> > tr <- d[index, ]
>> >
>> > ts <- d[-index, ]
>> >
>> > boot3 <- trainControl(method = "repeatedcv", number=10,
>> > repeats=10,classProbs = TRUE,verboseIter = FALSE,
>> >
>> > summaryFunction = twoClassSummary, sampling = "rose")
>> >
>> > set.seed(30218)
>> >
>> > ct <- train(`Bug class` ~ ., data = tr,
>> >
>> > method = "pls",
>> >
>> > metric = "AUC",
>> >
>> > preProc = c("center", "scale", "nzv"),
>> >
>> > trControl = boot3)
>> >
>> > getTrainPerf(ct)
>> >
>> >       [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>>
>

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