Scatter3 with weights

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Gabriella Tany 2018-5-1

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https://ww2.mathworks.cn/matlabcentral/answers/398379-scatter3-with-weights

评论： sloppydisk 2019-1-12

Hi,

I want to make a scatterplot of x, y, z coordinates and include the weight (which differs per particle) the locations have. So every particle has a specific weight and I want to combine all the weight of all the particles that have the same coordinates and visualize it as a heat plot. Is this possible?

Thanks!

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sloppydisk 2018-5-1

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https://ww2.mathworks.cn/matlabcentral/answers/398379-scatter3-with-weights#answer_318076

在 MATLAB Online 中打开

You could pass color values as follows

n = 1000;
X = rand(n, 1); Y = rand(n, 1); Z = rand(n, 1); C = hypot(X, Y);
size = 500;
scatter3(X, Y, Z, size, C, '.');
colormap jet

Or do you want to take a slice along the xy-plane? Then you should probably look at this page .

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Kayode Adetunji 2019-1-12

Hi, Please did you find out how to directly add weights to data points, especially depending on a condition? And also the consideration of data points of same location?

I will appreciate your feedback. I am struglling with this aspect. Thank you.

sloppydisk 2019-1-12

Do you want to add the weights to the color or to the size of the data points? In what way should they depend on a condition? Please state your problem more clearly.

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