How do I plot three variables against each other?

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Sophia Salazar 2019-6-28

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评论： Star Strider 2019-6-28

I have a list of lightning flahses, each flash has a latitude, longitude, and a power. All three of these are lists, not matrices.

I would like to plot a 3D plot, where x is longitude, y is latitude, and each dot is color coded to represent its power at the latitude and longitudinal locations.

How do I do this using three lists? The 3d plotting functions, like imagesc, require a matrix as the third value.

Thanks!

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Star Strider 2019-6-28

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在 MATLAB Online 中打开

Try this:

lat = rand(10,1);                                               % Create Vector
lon = rand(10,1);                                               % Create Vector
power = randi(9,10,1);                                          % Create Vector
figure
scatter3(lat(:), lon(:), power(:), [], power(:), 'filled')
grid on

This will colour them by the ’Z’ (’power’) value. The fourth argument [] is the size reference, and since you may want them all the same size, that argument is the empty array.