pROC ROC curves remove empty space
Make sure the plotting device is square and adjust the margins so that top + bottom == left + right: library(pROC) png(“test.png”, width = 480, height = 480) par(mar = c(4, 4, 4, 4)+.1) n = c(4, 3, 5) b = c(TRUE, FALSE, TRUE) rocobj <- plot.roc(b, n, percent = TRUE, main=”ROC”, col=”#1c61b6″, add=FALSE) dev.off()