I have a problem with `neuralnet` function from `neuralnet` package in R. 
I designed a simple structure with 82 feature as input and only 1 hidden layer with 10 neurons and output is 20 class and I left this line which represent `neuralnet` function to run above 4 hours and didn't finish ! 
This is the code : 

```
nn=neuralnet(f, data = train, hidden = 10, err.fct = "sse",threshold = 1, 
             learningrate=.05,rep = 1, linear.output = FALSE)

```