GNUPLOT: 2d histogram from set of points.

Posted by Arman on Stack Overflow See other posts from Stack Overflow or by Arman
Published on 2010-04-04T13:36:23Z Indexed on 2010/04/04 13:43 UTC
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Hello, I have a pairs of the points with their weights:

#x  y  w
0.111342 0.478917 0.232487 
0.398107 1.79559 0.221714 
0.200731 2.58651 0.0776068 
0.0967412 1.49904 0.0645355 
6.17638 8.63101 0.715604 
0.306128 3.10917 0.0984595 
0.340707 3.19344 0.10669 
7.18627 8.59859 0.835751 
8.56 9.63894 0.888065 
5.14272 6.86074 0.749587 
0.747202 3.812 0.196013 
8.71891 10.1355 0.860232 
0.346714 1.45895 0.237647 
5.21932 8.84491 0.590094 
9.42138 12.2082 0.771725 
0.215627 2.42317 0.0889856 

How to plot nice 2d histogram image with color bar? I found nice density map description but I don't wont to go via python. I there way to use only gnuplot scripting?

Kind Regards Arman.

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