MATLAB: Help in making a cumulative histogram, histc or accumarray

Question

All,

I have some data that I would like to create a cumulative histogram of. The bins I would like to use are like

bins=[0.2 15 0.4 15 0.6 15 0.8 15 1 15 1.2 15 1.4 15 1.6 15 1.8 15 2 15];

and a section of my data looks like

data = [0.072
0.085
0.118
0.200
0.325
0.527
0.823
1.193
1.553
1.822
1.952
1.907
1.707
1.468
1.287
1.200
1.138
1.038
0.898
0.778
0.667
0.599
0.563
0.511
0.434
0.356
0.300
0.266
0.247
0.216
0.199
0.183
0.165
0.131
0.081
0.058
0.051
0.037
0.022
0.019
0.032
0.034
0.034
0.034
0.033
0.020
0.017
0.016
0.017
0.017
0.003];

Given that the bins are non monotonically decreasing/increasing, accumarray and histc throw up errors, does anyone know how I might make this kind of cumulative histogram?

Thanks,

Jim

Answer 1

ubins = unique(bins);
bar( ubins, cumsum( histc( data, ubins ) ) );