Visualization of data in 3 dimention.

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zarzis rony
zarzis rony 2020-2-17
评论： zarzis rony 2020-2-18
Below is my example problem. I want to plot data in 3 dimention (surface or scatter either one will do) .More specifically, in x axis put value of F, in y axis put value of S and in z axis put value of P. There is 46 F`s value. For every F`s value I am generating 101 P`s value using 101 S`s value. Can you please point out how should i store the Datas to plot in 3D.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
F=5:1:50; % total 46 value
wn=2*pi*F;
S=(0:1:100)%total 101 value
for n=1:46
for k=1:101
P(k)=S(k)/w(n);
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Joel Bay
Joel Bay 2020-2-17
as it's written you're only calculating P for wn = 2*pi*50, but I'm not sure what you want otherwise. Do you want a P for every combination of wn and S?
zarzis rony
zarzis rony 2020-2-18
I want P for every combination of wn and S. And using meshgrid i could generate every combination. Then using those point i could generate the 3rd dimention data (P)

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Hyeokjin Jho
Hyeokjin Jho 2020-2-18
F=5:1:50; % total 46 value
w=2*pi*F;
S=0:1:100;%total 101 value
[wM,SM]=meshgrid(w,S);
P = SM./wM;
surf(w,S,P)
You can calculate same thing without for loop. Just use meshgrid and element-wise operation
surf(w,S,P) will do the 3D surface plotting

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