# plot only out of bag error rate in random forest

When I run random forest in R package and use plot function, there have many curves including out of bag error rate curve (black colour) and the misclassification error rate curves (other colours). However, I only would like to show on the plot only the out of bag error rate curve. How can I do that?

The curves can be subsetted using the $symbol in R. So, this is how you single out the error rate curve. $err.rate

You might also want to look at the documentation of the random forest plot by: (?plot.randomForest)
• How would you plot the err.rate then? plot(someModel$err.rate) does not do the trick Sep 5 '16 at 12:48 More in detail: Your confusion Matrix contains a variable, called err.rate which you access with the $ sign. The err.rate is stored as a matrix where the first column is the OOB Error. Each class gets its own column. Try str(someModel$err.rate). To access the err.rate do this $err.rate[,1], for plotting simply plot(myModel \$err.rate[,1]). The other columns in your matrix are the error rates of your classes!