search for: true_accuraci

Hello, I asked this as part of a previous message, but never really figured out a usable solution. So this is a second attempt. I have an process containing an SVM. The end result is the probability that the class is true. That result is added back to the original data. So I wind up with a data.frame that looks like this label,v1,v2,v3,prob_true What I want to do is measure how accurate

I've completed an experiment and want to summarize the results. There are two things I like to create. 1) A simple count of things from the data.frame with predictions 1a) Number of predictions with probability greater than x 1b) Number of predictions with probability greater than x that are really true In SQL, this would be, "Select count(predictions) from