RE: Error trying to run a RandomForest [SEC=UNOFFICIAL]

[Nolan, Anthony]

Good Morning, I get this too.

 

As I understand it, there is a variable in your dataset, where its class is not a factor, and it needs to be.

 

If the variable and do something like   dataset$variablename <- as.factor(ldataset$variablename)

 

That should fix it up, as I understand it. But I am not the best r coder, so I might be wrong also.

 

Hope it helps

 

Regards

tony

 

From: rattle...@googlegroups.com [mailto:rattle...@googlegroups.com] On Behalf Of Tom Eagle
Sent: Friday, 12 February 2016 12:32 PM
To: rattle-users
Subject: Error trying to run a RandomForest

 

Can anyone help me?  I am having the following error message when I try to run a randomForest on a small data set.  I am getting the following error message

 

An error occured in the call to 'randomForest::randomForest'. The error message was:

 

Error in na.roughfix.data.frame(structure(list(`as.factor(mod7_5class)` = structure(c(3L,  : 

  na.roughfix only works for numeric or factor

 

 

If this is a bug please contact sup...@togaware.com.

 

Please supply the output of rattleInfo() and the steps required to replicate the problem. 

 

Rattle 4.1.0

 

My target variable has 5 values and it is indicated as categoric on the data tab.  Tree works fine!

 

Thanks for any assistance!

 

Tom

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