bug in print.varImp.train

[topepo]

library(caret)
library(nnet)

#read in data
data = iris

#split data into training, test, and final test samples
trainIndex <- createDataPartition(data$Species, p=.80, list=F)
train = data[trainIndex,]
test = data[-trainIndex,]

#train and plot model fit
tree.fit = train(Species~., data=train, method="nnet")
varImp(tree.fit)
plot(tree.fit$finalModel)

#predict test data
tree.pred.test = predict(tree.fit, newdata=test)
confusionMatrix(tree.pred.test, test$Species)


> varImp(tree.fit)
nnet variable importance

  variables are sorted by maximum importance across the classes
Error in data.frame(`NA` = character(0), `NA` = character(0), `NA` = character(0),  : 
  row names supplied are of the wrong length
In addition: Warning message:
In format.data.frame(x, digits = digits, na.encode = FALSE) :
  corrupt data frame: columns will be truncated or padded with NAs
> plot(tree.fit$finalModel)
Error in xy.coords(x, y, xlabel, ylabel, log) : 
  'x' is a list, but does not have components 'x' and 'y'

[topepo]

done.

[zohrehmosleh]

I have the same problem. can you explain how i can overcome from this error.

[topepo]

You can install the current github version or just use the modified print function.

[zohrehmosleh]

If possible, please explain more. I install, but i receive error

[topepo]

It is difficult to help with no information about your system, what you did, or the error.

[zohrehmosleh]

what mean use the modified print function? can you help me?