Matlab programming Edit This function takes 2 inputs seq mat

Matlab programming

Edit: This function takes 2 inputs: seq, mat. Seq is a sequence we want to find in the given matrix, mat. The function returns row and columns of all matching sequences. If there are multiple matches, the function will return a vector containing all positions. For this question the reading is done vertically.

Solution

Code:

findSeqFromMatVect.m file

function [outrows, outcols] = findSeqFromMatVect(seq,mat)
outrows = [];
outcols = [];
for x = 1:size(mat,1)-size(seq,1)+1
for y = 1:size(mat,2)-size(seq,2)+1
%creating a block to check for the existance of sequence in the
%given matrix
block = mat(x:x+size(seq,1)-1,y:y+size(seq,2)-1);
if isequal(seq,block)
outrows(end+1) = x;
outcols(end+1) = y;
end
end
end
end

test.m file:

seq = [1,2,3,4];
mat = [9,1,2,3,4,8,5;
1,2,3,4,8,5,6;
2,8,7,1,2,3,4];
[rows, cols]=findSeqFromMatVect(seq,mat)

output:

rows =

1 2 3

cols =

2 1 4