How can we caculate recall when we get the MAP?

[ChenCong7375]

There used to be mAP and Recall when I valided my data.
But now there is only mAP .
I want to get P-R curve but it seems to be impossible.
How should I modified the code?

[AlexeyAB]

If you will provide screenshot, then you will see that there are both mAP and Recall (conf_thresh=0.24)

But if you want to build PR-curve, uncomment this line:

darknet/src/detector.c

Line 1047 in 4c315ea

//printf("Precision = %1.2f, Recall = %1.2f, avg IOU = %2.2f%% \n\n", class_precision, class_recall, avg_iou_per_class[i]);

[LukeAI]

Getting this information sounds nice, is there a reason that isn't output by default?

[AlexeyAB]

@LukeAI F.e., if you use for MS COCO - 101 points for 80 classes - you will get 8080 output lines.
If you use AUC (Area Under Curve) then you can get millions lines.

So may be there should be additional flag to output it.