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851 kaklik 1 
set table 'gauss3.txt'
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splot 'gauss3.avs' binary format='%4uint8' record=180x180 skip=8 using 2
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unset table
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set xlabel 'pixels'
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set ylabel 'pixels'
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set zlabel 'intensity' rotate by 90;
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set hidden3d
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unset key
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set terminal png
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set output 'gauss3_3d.png'
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splot 'gauss3.txt' with lines
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unset output
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unset key
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set samples 5000
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set xlabel 'pixels'
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set ylabel 'intensity'
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f(x)=a*exp(-(x-x0)**2/(2*w**2))
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a=100
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x0=90
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w=30
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fit f(x) 'gauss3.txt' every ::90::100 using 2:3 via a,x0,w
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set output 'gauss3_fit1.png'
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plot f(x) w lines linewidth 3, 'gauss3.txt' every ::90::100 using 2:3
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unset output
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unset key
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f(x)=a*exp(-(x-x0)**2/(2*w**2))
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a=200
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x0=80
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w=20
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fit f(x) 'gauss3.txt' every :::90::100 using 1:3 via a,x0,w
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set output 'gauss3_fit2.png'
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plot f(x) w lines linewidth 3, 'gauss3.txt' every :::90::100 using 1:3
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unset output
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