unable to create .vec files with create samples file

[saideepthik]

i used below ccommand
perl bin/createsamples.pl positives.txt negatives.txt samples 5000\ "opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.5 \ -maxyangle 1.5 maxzangle 0.5 -maxidev 40 -w 50 -h 50"
its working fine with python 2.7v, opencv 3.2.0
the problem was i installed with same specification in another pc. i am getting like below when i'm creating .vec samples.
positive images :2900
negative images :500

opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1676.jpg -bg tmp -vec samples/pics1676.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics2860.jpg -bg tmp -vec samples/pics2860.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics726.jpg -bg tmp -vec samples/pics726.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1090.jpg -bg tmp -vec samples/pics1090.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics2752.jpg -bg tmp -vec samples/pics2752.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics454.jpg -bg tmp -vec samples/pics454.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics498.jpg -bg tmp -vec samples/pics498.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics2183.jpg -bg tmp -vec samples/pics2183.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1130.jpg -bg tmp -vec samples/pics1130.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1493.jpg -bg tmp -vec samples/pics1493.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics766.jpg -bg tmp -vec samples/pics766.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1553.jpg -bg tmp -vec samples/pics1553.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics2287.jpg -bg tmp -vec samples/pics2287.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1060.jpg -bg tmp -vec samples/pics1060.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1814.jpg -bg tmp -vec samples/pics1814.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics0.jpg -bg tmp -vec samples/pics0.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1546.jpg -bg tmp -vec samples/pics1546.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1169.jpg -bg tmp -vec samples/pics1169.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics2443.jpg -bg tmp -vec samples/pics2443.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics496.jpg -bg tmp -vec samples/pics496.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1749.jpg -bg tmp -vec samples/pics1749.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics1519.jpg -bg tmp -vec samples/pics1519.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics402.jpg -bg tmp -vec samples/pics402.jpg.vec -num 0
opencv_createsamples -bgcolor 0 -bgthresh 0 -maxxangle 1.1 -maxyangle 1.1 maxzangle 0.5 -maxidev 40 -w 80 -h 40 -img ./positive_images/pics133.jpg -bg tmp -vec samples/pics133.jpg.vec -num 0

please let me what the problem here and why?
thanks in advance

[saideepthik]

issue resolved when i increase the number in negative images to 750.
but i want know how it will process this positives and negative and in which ratio we should we should give.
if anyone have in depth concept of this machanism. please share with me.
thankyou.