# Combine three different set bar graphs in one graph

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Prateek Gupta on 26 Mar 2018
Commented: M on 28 Mar 2018
I have three sets of bar graphs. How can I just place them on one graph with some spacing between each set and with each set having a different colour? three sets are: 1) vector_22=[000,001,010,011,100,101,110,111] leak_22=[5.33,5.46,4.45,4.47,4.41,3.90,4.36,3.71]; bar(leak_22); set(gca, 'xticklabel',{'000','001','010','011','100','101','110','111'}); text(1:length(leak_22),leak_22,num2str(leak_22'),'vert','bottom','horiz','center'); xlabel('Input Vector Applied'); ylabel('Leakage in nW');
2) vector_32=[000,001,010,011,100,101,110,111] leak_32=[4.46,4.50,3.69,3.67,3.63,3.24,3.63,3.17]; bar(leak_32); set(gca, 'xticklabel',{'000','001','010','011','100','101','110','111'}); text(1:length(leak_32),leak_32,num2str(leak_32'),'vert','bottom','horiz','center'); xlabel('Input Vector Applied'); ylabel('Leakage in nW');
3) vector_45=[000,001,010,011,100,101,110,111] leak_45=[3.65,3.69,3.04,3.0,2.98,2.69,2.99,2.66]; bar(leak_45); set(gca, 'xticklabel',{'000','001','010','011','100','101','110','111'}); text(1:length(leak_45),leak_45,num2str(leak_45'),'vert','bottom','horiz','center'); xlabel('Input Vector Applied') ylabel('Leakage in nW')

M on 27 Mar 2018
You can group your 3 bar graphs using something like this:
b=bar([leak_22;leak_32;leak_45]);
For your example, you will have 3 groups of 8 bars.
If you want 8 groups of 3 bars, use the transpose of your vectors.
You can then change the color of specific bar using:
b(1).FaceColor='blue';
You can also change the line style and others properties.
M on 28 Mar 2018

Try

```leak_32=[4.46,4.50,3.69,3.67,3.63,3.24,3.63,3.17]';
leak_22=[5.33,5.46,4.45,4.47,4.41,3.90,4.36,3.71]';
leak_45=[3.65,3.69,3.04,3.0,2.98,2.69,2.99,2.66]';
b=bar3([leak_22 leak_32 leak_45]);
```

And see if it corresponds to your needs.

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