On 2020-07-22 16:08 -0700, David Winsemius 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"
*Psst* ... I think this is
farff::readARFF ... Where is
"bughunter.arff" from?
| | [[alternative HTML version deleted]]
|
| 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.
Hear, hear
| | index <- createDataPartition(d$`Bug class`, p = .70,list = FALSE)
Maybe this is
caret::createDataPartition?
| | tr <- d[index, ]
| |
| | ts <- d[-index, ]
| |
| | boot3 <- trainControl(method = "repeatedcv", number=10,
| | repeats=10,classProbs = TRUE,verboseIter = FALSE,
Also caret ... ?caret::trainControl
| | summaryFunction = twoClassSummary, sampling = "rose")
Missing “(” also perhaps other params
have fallen off here ? The C looks like
a paranthesis because of camel-case
maybe ... hmmm ...
| | set.seed(30218)
| |
| | ct <- train(`Bug class` ~ ., data = tr,
| | method = "pls",
| | metric = "AUC",
| | preProc = c("center", "scale", "nzv"),
| | trControl = boot3)
| |
| | getTrainPerf(ct)
|
V
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