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## Re: how do I calculate probabilities using data files and sets of data n

 From: Nicholas Jankowski Subject: Re: how do I calculate probabilities using data files and sets of data numeric and text? Date: Mon, 30 Nov 2015 09:52:56 -0500

On Mon, Nov 30, 2015 at 8:37 AM, Jonathan Camilleri wrote:
This may sound like an odd question but let's say I have the question "how many items fit within a matrix/cell/set, then I assume nchoosek is not the right command to use right?

Function File: C = nchoosek (N, K)
Function File: C = nchoosek (SET, K)

Would you rather use sets?

Examples of input
1. m
m =
{
[1,1] = Chicken
[1,2] = Beef
[1,3] = Ham
}
2. attached data file - sourced from http://archive.ics.uci.edu.

nchoosek will tell you either (a) how many independent combinations you can make from a set, or (b) what those combinations are.  I'm not sure exactly what you mean by 'fit within' a matrix/cell/set. That said, nchoosek expects to work on numerical values, not strings, and a set has to be a numerical vector/array, not a cell array

Maybe if you give us a specific example of the input and output you're looking to get with the simplified chicken/beef/ham example, we can provide better suggestions on the mathematical procedures to use.

nickj