On Fri, 2007-05-04 at 12:05 -0500, Bill Vorias wrote: > I had a question about Random Forests. I have a text file with 10 > dichotomous variables and a bivariate response vector. I read this file > into R as a data frame, and then used the command "randomForest(Response ~., > dataset, etc.." where "Response" is the column header of the response > variable and "dataset" is the name of the data frame. I get an error that > says "Response" not found. I was looking at the Iris data example in the R > help files, and it seems like this is exactly what they did. Do you have > any suggestions? Thanks.
R you sure that you have correctly specified the column and data frame names in the call to randomForest()? Be sure to check for typos, including capitalization. You can use: ls() to check for the current objects in your working environment and you can then use: str(YourDataFrame) or names(YourDataFrame) to display information about the detailed structure and/or column names, respectively, in the data frame that you created from the imported data. HTH, Marc Schwartz ______________________________________________ [email protected] mailing list 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.
