# Binning for a histogram.

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Chad el 2 de Dic. de 2011
I am unable to find an effecive method to bin the following data.
11.8652 3.5891
12.5513 6.6741
11.8652 3.5891
8.8125 1.1711
8.8125 2.3422
8.8125 1.1711
5.7598 0.3324
5.0737 0.9444
5.7598 0.3324
12.5513 6.6741
14.1000 19.0596
12.5513 6.6741
8.8125 2.3422
0.0000 0.0000
8.8125 2.3422
5.0737 0.9444
3.5250 7.2712
5.0737 0.9444
11.8652 3.5891
12.5513 6.6741
11.8652 3.5891
8.8125 1.1711
8.8125 2.3422
8.8125 1.1711
5.7598 0.3324
5.0737 0.9444
5.7598 0.3324
For example I am trying to
Energy = Sum
14.1000 = 19.0596
12.5513 = 6.6741 + 6.6741 + 6.6741 + 6.6741
11.8652 = 3.5891 + 3.5891 + 3.5891 + 3.5891
8.8125 = 1.1711 + 1.1711 + 1.1711 + 1.1711 + 2.3422 + 2.3422 + 2.3422 + 2.3422
so on and so forth
I would like to then plot(Energy,Sum) while not repeating the Energy. I cannot find away to do this. I appreciate the help.
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Doug Hull el 2 de Dic. de 2011
huh? It is not clear what you are doing.

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Walter Roberson el 2 de Dic. de 2011
[uvals, a, uidx] = unique(YourData(:,1));
Sum = accumarray(uidx, YourData(:,2));
plot(uvals, Sum)
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Chad el 2 de Dic. de 2011
Very nice...it works great!

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### Más respuestas (1)

Hin Kwan Wong el 2 de Dic. de 2011
Make an array with A=[energy sum] Then use:
A=sortrows(A);
hist(A(:,2),A(:,1))
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