MATLAB-如何从nxn矩阵绘制热图? [英] MATLAB -- How does one plot a heatmap from nxn matrix?

问题描述

我有一个50x50的矩阵，其中一些数字的范围从0到1以上.如何使用色条显示此数据的热图?我正在寻找的是x和y值的范围从1到50和1到50的图，每个点(x，y)都给定与矩阵条目(x，y)上的数据大小相对应的颜色.有关此类热图的示例，请查看此有趣的xkcd帖子.

I have a 50x50 matrix with some numbers ranging from 0 to a bit over 1. How do I show a heatmap of this data with a colorbar? What I'm looking for is a plot where the x and y values range from 1 to 50 and 1 to 50, with each point (x, y) given a color corresponding to the size of the data at the matrix entry (x, y). For an example of such a heatmap, check out this amusing xkcd post.

谢谢！

推荐答案

您如何看待该示例? 另请参见?

What do you think about this example? see also?

>> A = randi([10,60],100,100);
>> colormap('hot')
>> imagesc(A)
>> colorbar

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