Cell Array Filtering Not Working

Hello,

I have an issue filtering a cell matrix that is created from a standard array. When I create the cell matrix outright (not converting a standard matrix), my filtering works exactly as intended. For example, when I try to filter a cell matrix created by the following method:

K={1 32 5 6
4 12 6 8
09 3 6 1}

And filter the third column for each row containing a 6 via:

p=K([K{:,3}]==6,:)

I get exactly what I want which are the rows that correspond to the filtered third column of the original K cell matrix. When I create a cell matrix from a standard matrix though and try to filter the same way I get an error. For example, this code:

A=[1 34 2; 6 4 2; 9 1 0]
B={A}
C=B([B{:,3}]==2,:)

Gives the following error which corresponds to the line defining C:

Index exceeds matrix dimensions.

I don't understand what the difference between my first and second filtering methods are. How would I filter the cell matrix B exactly like I filtered K?

Thanks in advance.

Answer 1

[Azzi Abdelmalek]

A=[1 34 2; 6 4 2; 9 1 0]
B=num2cell(A)
C=B([B{:,3}]==2,:)

If you write B={A}, B is a 1x1 cell array. I think what you are looking for is num2cell(A) which is 3x3 cell array

[Patrick Comiskey]

This works perfectly! Thank you for your quick response Azzi.