Bin X data, sum corresponding Y data and then plot.

I have X data ranging from 0 to 999 and corresponding Y data. I want to bin the X data from 0 to 2000 with a bin size of 10. Then accumulate corresponding Y data in the respective bins. For example, X data from 0.1 to 10 should be taken as 10; 10.01 till 20 should be taken as 20 etc. The Y data in the same interval should be summed up and put in the corresponding bins. At the end, I want to plot X,Y . Please help me to code this... thank you.

Answer 1

[Walter Roberson]

binnum = ceil(X/10);
binsum = accumarray(binnum(:), Y(:));
plot((1:size(binsum,1))*10, binsum);

Answer 2

[Jan]

edges           = [0.1, 10, 20];  % However you define this...
[N, edges, bin] = histcounts(X, edges);
Result          = accumarray(bin, Y);

I cannot check this currently. Perhaps you have to transpose an input of accumarray.

[aneps]

I tried with this code but it is giving error:

Error:

[N, edges, bin] = histcounts(X, edges);

My code:

A = load('/Users/Myfolder/Documents/MATLAB/Data.txt');
X = A(:,1);
Y = A(:,2);
edges           = [0.1, 10, 20];  
[N, edges, bin] = histcounts(X, edges);
Result          = accumarray(bin, Y);

Also, could you please explain me how the 'edges' is defined. It should be between max value and min value of X?