Plotting the graph of rows and columns

G=[1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16]

Code one siz = size(G); idx = sub2ind(siz, randi([1,4], 1, siz(2)), 1:siz(2)); C = zeros(siz); C(idx) = G(idx);

code two s = size(G); C = G; [~,ii] = sort(rand(s)); C(sub2ind(s,ii(1:end-1,:),repmat(1:s(2),s(1)-1,1))) = 0;

code 3 sz = size(G); rowPos = randi(sz(1),sz(2),1); linInd = sub2ind(sz, rowPos, (1:sz(2))'); idx = false(sz); idx(linInd) = true; C = G; C(~idx) = 0;

Could anybody tell me how to plot the graph of code one,code two and code three separately having rows on the x axis and columns on the y axis.

Answer 1

[Image Analyst]

Not exactly sure what you mean. Like this: ????

G=[1 2 3 4;
  5 6 7 8;
  9 10 11 12;
  13 14 15 16]

% Code one
siz = size(G);
idx = sub2ind(siz, randi([1,4], 1, siz(2)), 1:siz(2));
C = zeros(siz);
C(idx) = G(idx);
subplot(3, 1, 1);
plot(C, 'LineWidth', 2);
grid on;

% code two
s = size(G);
C = G;
[~,ii] = sort(rand(s));
C(sub2ind(s,ii(1:end-1,:),repmat(1:s(2),s(1)-1,1))) = 0;
subplot(3, 1, 2);
plot(C, 'LineWidth', 2);
grid on;

% code 3
sz = size(G);
rowPos = randi(sz(1),sz(2),1);
linInd = sub2ind(sz, rowPos, (1:sz(2))');
idx = false(sz);
idx(linInd) = true;
C = G;
C(~idx) = 0;
subplot(3, 1, 3);
plot(C, 'LineWidth', 2);
grid on;

C is a 4 x 4 array. So do you mean each columns is a new set of y values, so column 1 has y1 values, column2 has y2 values, column 3 has y3 values, and column 4 has y4 values, and the x for all of those is just the row number = [1,2,3,4]?