5D Data with scatter3?

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Daniel 2021-9-27

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编辑： Daniel 2021-9-27

It seems like you should be able to plot 5D data with scatter3 using the three coordinates, the marker size, and the color. I can't figure it out, though. Here's my equation:

I had it working fine while fixing one variable and using meshgrid for the calculation and color to represent the LHS, but can't figure out how to include all five variables. Since meshgrid only goes up to three dimensions, I'm not sure that's a viable way. I thought there might be a simple "trick" by just repeating the calculation and using hold on with the plot, but I haven't gotten that to work either. I tried something akin to:

for variable1
    for variable2
        for variable3
            for variable4
                LHS = RHS
            end
            scatter3(variable1,variable2,variable3,variable4,LHS), hold on
        end
    end
end

This only returns a plot of data along a corner-to-corner diagonal. What's the right way to plot with all five variables?

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Steven Lord 2021-9-27

What is the size of each of the five variables you're passing into scatter3?

Daniel 2021-9-27

All the data are created within the script, so I can make them whatever I want.

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Answer 1

Steven Lord 2021-9-27

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https://ww2.mathworks.cn/matlabcentral/answers/1461764-5d-data-with-scatter3#answer_796239

在 MATLAB Online 中打开

It is possible to plot with five arrays:

[x, y, z] = peaks;

s = 10*(x.^2 + y.^2 + 1);

c = abs(z);

scatter3(x(:), y(:), z(:), s(:), c(:))

colorbar

Perhaps if you show us a sample of code we can execute and describe how the behavior of that code differs from how you want it to behave we may be able to offer more targeted suggestions for how to achive your goal.

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Daniel 2021-9-27

编辑：Daniel 2021-9-27

Oof. I had this at one point, but I was plotting with a combination of number of points and marker size that made it look like a filled contour instead of individual points, so I thought it wasn't working!

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