Combine three different set bar graphs in one graph

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')

Answer 1

[M]

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.

[Prateek Gupta]

Thanks for the reply. But I want three groups of 8 bar. So, I want only 3 colours for each group. And how to label x and y axis value for each bar?

[M]

But I want three groups of 8 bar.

This is what you should get using

b=bar([leak_22;leak_32;leak_45]); 

You can modify color as I told you in my previous answer.

For label, you can still use xlabel command to print an global xlabel. To print a specific label for each 3 main groups, you can use:

l=categorical({'group1','group2','group3'});
b=bar(l,[leak_22;leak_32;leak_45]); 
xlabel('Global x label');

[Prateek Gupta]

b=bar([leak_22;leak_32;leak_45]); with this command I'm getting 8 colours bar. But I want each set of 8 bars of 1 colour only. Thanks!

[M]

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.