[R] How to draw several ROC curves on a common graph

2007-06-20 Thread Tirthadeep
library(ROCR) plot(roc1) plot(roc2) gives two plots on two different graph. Now i want to merge on a single graph. plot(roc1) points(roc2) Error in as.vector(x, double) : cannot coerce to vector any solution? -- View this message in context:

Re: [R] How to draw several ROC curves on a common graph

2007-06-20 Thread Dieter Menne
Tirthadeep sabya231 at gmail.com writes: library(ROCR) plot(roc1) plot(roc2) gives two plots on two different graph. Now i want to merge on a single graph. plot(roc1) points(roc2) Use parameter add=TRUE in all but the first call Dieter