Represent results in vector format.

Hi. Good morning.

I hope you can help me.

I have two matrices A and B it is about finding the positions of the values ​​of the matrix A in the mariz B.

The code below finds the values ​​in matrix A and their respective positions and values ​​in matrix B

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clc; clear; close all; short format

A = [1 2 3 4 5 6 7 8 9 10];

B = [1 25 31 41 11 61 7 81 31 11

   81 3 71 31 31 6 11 8 61 31

   21 81 2 61 5 31 31 31 19 12

   91 31 41 4 61 81 61 41 10 9];

for b = 1: 1: length (A)

E = A (1, b)

[row1, col1] = find (B == E)

end

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The results shown in the command window are in this format. I show only one value found:

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E =

    10

row1 =

     4

col1 =

     9

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I would like to know how to do it to show me three vectors, a vector of values, one of rows and another of columns for example:

      E = [1 2 3 4 5 6 7 8 9 10]

row1 = [1 3 2 4 3 2 1 2 4 4]

 col1 = [1 3 2 4 5 6 7 8 10 9]

I await your advice.

Thanks and regards.

Answer 1

[Stephen23]

>> A = 1:10
A =
    1    2    3    4    5    6    7    8    9   10
>> B = [1,25,31,41,11,61,7,81,31,11;81,3,71,31,31,6,11,8,61,31;21,81,2,61,5,31,31,31,19,12;91,31,41,4,61,81,61,41,10,9]
B =
    1   25   31   41   11   61    7   81   31   11
   81    3   71   31   31    6   11    8   61   31
   21   81    2   61    5   31   31   31   19   12
   91   31   41    4   61   81   61   41   10    9
>> [X,Y] = ismember(A,B);
>> E = A(X)
E =
    1    2    3    4    5    6    7    8    9   10
>> [R,C] = ind2sub(size(B),Y(X))
R =
    1    3    2    4    3    2    1    2    4    4
C =
    1    3    2    4    5    6    7    8   10    9

[Ricardo Gutierrez]

Excellent !!!

It works !!!

Thanks so much.