How to plot binary matrix as dots?
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I have a Matrix with ones and zeroes. How to plots the matrix with zeroes as black spot and ones as whote dots as shown in figure below.
采纳的回答
Try this —
M = randi([0 1],25)>0; % Logical Matrix
[r,c] = find(M);
figure
scatter(c, r, 75, 'sw', 'filled')
set(gca, 'Color','k', 'YDir','reverse')
axis([0 size(M,1)+1 0 size(M,2)+1])
% axis('equal')
The spy function works for this, however it does not have the ability to fill the markers, so I went with scatter instead.
figure
spy(M,'sw');
set(gca, 'Color','k')
hs.MarkerFaceColor = 'w';
Experiment to get the result you want.
.
更多回答（3 个）
millercommamatt
2021-9-15
FH = figure;
imagesc(yourMatrix);
colormap(FH,[0,0,0;1,1,1]);
M = magic(7);
B = M > mean(M);
colormap('gray')
imagesc(B)
axis square
imshow(yourMatrix)
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