Surf plot error for 4 variable input

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Hillaryfor2016 2015-4-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/210265-surf-plot-error-for-4-variable-input

评论： William 2015-4-19

I have the following set of vectors, generated from a data set, each a length of 15120

      Min/Max    
x       0/1      
y      -3.5/1
z      25/220
v       0/0.8464

end

For each vector, each row represents a unique data point.

I think Im pretty much using the standard script for interpolating a surface between the data points;

if true
z=S2(:,1);
y=S2(:,3);
x=S2(:,4);
v=S2(:,2);
[xq,yq,zq]=meshgrid(0:0.05:1, -3.5:0.225:1, 25:9.75:220);
vq=griddata(x,y,z,v,xq,yq,zq);
surf(vq,zq,yq,xq);
end

this generates 21x21x21 grids for vq,xq,yq,zq which obviously dont work :(

In summary I really wish to plot a surface of V with respect to the three other variables. Any advice would be great. Thanks

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Hillaryfor2016 2015-4-19

Hi William, sorry for not getting back to you sooner. S2 is a 4x15120 variable from which I extract all of the other variables. So I ran simulations, whereby I vary x, y and z as independent variables and get a resultant variable of v. I covered all of the parameter space such that a 3x3 block is sampled everywhere.

William 2015-4-19