MATLAB: How can I filter the nth character from categorical

categoricalMATLAB

i have a categorical value a, looks like:

 a = 888-2018-02160001

Now I want the 10th and 11th character, the '02'.

I already tried a(10:11), but that doesn't work, because the length of a is 1. Also when I try string(a), the length is still 1

How can I filter these characters from a categorical?

Best Answer

 >>a = '888-2018-02160001'
 a(10:11)
 ans =
     '02'

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MATLAB: How to set an optimization variable to be an element of a set / categorical

Set your variable to be an integer, and use the integer value to select from a list of predefined values. For examples, see optimal dispatch or a genetic algorithm example (not in problem-based framework).

Alan Weiss

MATLAB mathematical toolbox documentation

MATLAB: Reducing the number of count/values in each bin in MATLAB

In this line:

Count_Liquid = (Count_Liquid + histcounts(CTT_liquid, Intervals_CTT))

the variable Count_Liquid is computed using itself (it appears on both sides). I don't think that's what you want.

Also, the number of elements of CCT_liquid that lie inside a given bin is what it is. The only way to change the counts is to change the bins themselves.

Why not let MATLAB do the binning automatically?

nbins = 200; % number of bins (where more bins => smaller bins => less in each bin)
[Count_Liquid,edges] = histcounts(CTT_liquid, nbins); % get counts and the bin edges

Best Answer

Related Solutions

MATLAB: How to set an optimization variable to be an element of a set / categorical

MATLAB: Reducing the number of count/values in each bin in MATLAB

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