How can i get standard deviation in a scatter3 plot
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figure
scatter3(SL0,SR0,V0,15)
hold on
scatter3(SL20,SR20,V20,15)
scatter3(SL30,SR30,V30,15)
plot3(L2,L1,L3,'b')
plot3(LL2,LL1,LL3,'r')
plot3(LLL2,LLL1,LLL3,'k')
hold off
grid on
This is my current code which gives me
I would like to get a standard deviation in both x,y,z direction for each of the data points (the 9 dots). I think it's rather advanced, so is it even possible?
回答（1 个）
Star Strider
2019-5-8
It would be easiest to concatenate your scalar variables into a matrix, then take the standard deviation of the matrix rows:
Smtx = [SL0, SL20, SL30; SR0, SR20, SR30; V0, V20, V30];
Ssd = std(Smtx,[],2)
Here, Ssd(1) is the standard deviation of the x-values, Ssd(2) y-values, and Ssd(3) z-values.
If you only have the three sets of scalar values, this will work. If you have more data, or if your data are different, you need to change the code accordingly.
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2019-5-8
2019-5-8
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