Can I concatenate histogram?

*hi every one ..simple question : can I concatenate the histograms for a block of an array ,,and how ??

[Oleg Komarov]

not clear.

Answer 1

[Ivan van der Kroon]

If you are using hist to produce histograms, the result will be an array (or matrix, but in that case matlab treats the colums of the input as arrays and finds the histogram of those). And yes, you can concatenate any matrix by using brackets and indexes, e.g. M(1:3,[5 7 9]).