mode calculator

this function calculated column-wise mode values.

Description

This function calculates column-wise mode values of a matrix. If there are no modes in a column, it returns NaN. Column mode values are stored in a cell array. This is a modified version of "fastmode.m" by Harold Bien.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
fastmode

• MATLAB release: MATLAB 6.5.1 (R13SP1)

[ipek deveci kocakoc]

This is for versions before R14SP3. I still don't have it, and there are more people who don't.

[Harold Bien]

MATLAB's own "mode" command is also rather slow - especially if you put it into a loop (see my tests on 'fastmode.m' versus MATLAB's built-in mode). If you are running mode in a loop, like in this file, it can save you a substantial amount of time (less than half the time it takes using built-in MATLAB mode on a 10,000 element long vector 1,000 times).

[Jaime Ramos]

thanks a lot fella, I'm still chugging along with the old version of matlab myself !