2D color plot with 3 vectors
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I have three vectors: x, y and z. Each (x(i), y(i)) coordinate corresponds to one z(i). I want to plot a 2D plot with x, y as axes and z denotes the colors. What should I do? Thanks a lot.
采纳的回答
Walter Roberson
2012-3-28
pointsize = 10;
scatter(x, y, pointsize, z)
更多回答（3 个）
Richard
2012-3-28
1 个投票
you could use pcolor(x,y,z). If you need further instruction let me know.
2 个评论
Zhiting
2012-3-28
Walter Roberson
2012-3-28
image() would be better than pcolor().
pcolor() and image() would assume that you have a full matrix of data, but the user only has vectors -- scattered points.
Thomas
2012-3-28
Just adding if you need a 3d graph:
dotsize=25
scatter3(x(:), y(:), z(:), dotsize, z(:), 'filled')
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