#!/bin/bash

gmt begin test3 png

        # Shading for a>b
	gmt math -Q a.txt b.txt GE 0 NAN a.txt MUL = a_b.txt

	paste time.txt a.txt b.txt a_b.txt  > file.txt

	gmt plot file.txt -i0,1 -Wblue -R2019-07-01T/2020-10-01T/24/31 -JX10c/4c -l"a"
	gmt plot file.txt -i0,2 -Wred -l"b"

	gmt plot file.txt -i0,3 -Gred@90 -l"a> b"

gmt basemap -R2019-07-01T/2020-10-01T/24/31 -JX10c/4c -Bxa2Of1d -Bya1f0.5g0.5
gmt end show