how to draw bar plot for histogram values?

I have computed the precision,recall and f measure for the algorithm. I want to draw bar plot for the three values. Precision=1*256,recall=1*256,F-measure=1*256. I am getting figure like this.

But, I want something like this and I have attached the text file

I have written the code

    data = [P_1,R_1,f_1,
        P_2,R_2,f_2,
        P_3,R_3,f_3
        P_4,R_4,f_4];
    b=bar(data);
    set(b(1),'FaceColor','b');
    set(b(2),'FaceColor','r');
    set(b(3),'FaceColor','y');

    grid on;
    set(gca,'XTickLabel',{'DEMO1','DEMO2','DEMO3','DEMO4'});
    legend('Precision','Recall','F_\beta');

[the cyclist]

Can you post your underlying data (P1, etc.), or a small sample that exhibits the problem?

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I am attaching the text file.

[the cyclist]

It would be a lot more convenient if you uploaded a MAT file with the variables already uploaded and formatted.

[the cyclist]

Here you go.

Can you do the same for your other variables?

[the cyclist]

I stupidly overlooked a very basic problem with what you are doing.

Your data matrix has 12*256 = 3,072 values. But the bar chart you want only plots 18 values.

What is it that you actually want to plot?

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Thank you so much for pointing out the mistake. I got it. I want to calculate the mean and then plot it.once again thank you

Answer 1

[the cyclist]

My guess is that you are grouping the wrong dimension. Try using the transpose

bar(data')

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Thank you for your answer. But it is not working