Min Returns Value That is Not in List

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Paul Huter 2014-9-25

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评论： Paul Huter 2014-9-25

I have a cell array and I am trying to find the min (and max) value. The numbers in the cell array go from 2 to over 200 (but not necessarily all numbers). However, when I try to find the min (using "cellfun" or "cat2mat"), I get 48 as the min and 57 as the max. Neither 48 nor 57 is in my list of values.

Any ideas on what the issue is?

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Guillaume 2014-9-25

Can you give an example of your cell array?

Paul Huter 2014-9-25

It is a single column with about 226 values.

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Answer 1

Geoff Hayes 2014-9-25

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Paul - are you somehow converting your numbers to strings? Try the executing the following statements in the Command Window

 min('104')
 ans =
    48

and

 max('191')
 ans =
    57

The ASCII code for zero is 48, and the ASCII code for 9 is 57. What is the line of code you are using with cellfun?

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John D'Errico 2014-9-25

编辑：John D'Errico 2014-9-25

+1. I would bet a decent sum of money that you got it right. The clue being the statement that the cell array contains "not necessarily all numbers". So it must be a cell array containing strings. Just because something LOOKS like a number does not mean it is stored as such, or that it would be interpreted as a number by MATLAB.

Paul Huter 2014-9-25