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To get filled curves between y=0 axis and plot using b2r

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Utsav
Utsav 2016-2-8
关闭： MATLAB Answer Bot 2021-8-20
My code runs: close all; clear all; b = -5 + (5+5)*rand(80,1) a=[1:1:80]; plot(a,b,'k'); colorbar colormap(b2r(-5,5))
This generates the attached plot. I need the plots filled up in accordance to gradient. Any help shall be highly appreciated. Also I shall like to know how can I fill positives with red and negatives with blue.

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