My script isn't working, can someone please! help me? Further explanation in thread.

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The Legend 2020-1-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/500110-my-script-isn-t-working-can-someone-please-help-me-further-explanation-in-thread

编辑： The Legend 2020-1-13

function M = initializeBoard(N, p)
for i = 1 : N
    for j = 1 : N
        x = rand(1);
        if (x < p)
            M(i,j) = 1;
        else
            M(i,j) = 0;
        end
    end
end
end

Imagine that this functions creates a N x N matrix A (M).

This matrix consists of 1's and 0's, and the distribution of these depends on p, as can be seen:

if (x < p)
    M(i,j) = 1;
else
    M(i,j) = 0;
end

function pathFound = findPath(N, p)
A = initializeBoard(N, p);
scanPath = bwlabel(A,4);
[rowNum, ~] = size(scanPath);
stats = regionprops(scanPath, 'PixelList');
pathFound = false;
for iblob = 1:length(stats)
    if ((min(stats(iblob).PixelList(:,2)) == 1) && (max(stats(iblob).PixelList(:,2)) == rowNum))
        scanPath(scanPath == iblob) = 10*iblob;
        pathFound = true;
    else
        pathFound = false;
    end
end
end

This function should check if there's a path between bottom and top of the matrix, and if there is, return a 'true' value.

clear; close all; clc;
pSteps = 20;
M = 100;
N = 200;
probs = [];
ps = [];
for i = 1:pSteps
p = (1/pSteps) * i;
fprintf('p is at %.2f\n', p);
paths = 0;
for m = 1:M
    
    if findPath(N, p) == 1
        paths = paths + 1;
    end
    
end
prob = paths / 50;
probs = [probs, prob];
ps = [ps, p];
end
plot(ps, probs)