Interpolation in a table or a matrix
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el 28 de Mzo. de 2017
Editada: Rena Berman
el 14 de Mayo de 2020
Hi, I need to write down a code and need an interpolation of that table which I uploaded. In my code I wrote it as a matrix but really dont know how to make the interpolation since I am new to MATLAB. Here I need to input, one is tD value and the other one is 2*pi*Rh'*lambda, so it seems is 2 dimension interpolation. I hope there is someone could help me.
Thanks in advance.
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Stephen23
el 3 de Mayo de 2020
Original question by Sedat Erkal on 28 Mar 2017, retrieved from Google Cache:
Interpolation in a table or a matrix
Hi, I need to write down a code and need an interpolation of that table which I uploaded. In my code I wrote it as a matrix but really dont know how to make the interpolation since I am new to MATLAB. Here I need to input, one is tD value and the other one is 2*pi*Rh'*lambda, so it seems is 2 dimension interpolation. I hope there is someone could help me.
Thanks in advance.
Respuesta aceptada
Steven Lord
el 28 de Mzo. de 2017
Take a look at the interp2 function.
2 comentarios
John D'Errico
el 29 de Mzo. de 2017
Steve is of course correct. ALWAYS trust Steve. interp2 is exactly what you need. Read the help carefully. look at
doc interp2
You will find examples of use in there, that should help you.
Walter Roberson
el 29 de Mzo. de 2017
It is not necessary to use meshgrids to enter that table or do interpolation with it. You can use marginals as your values
interp2(t0, bore, TwoDArrayOfValues, t0_to_sample_at, bore_to_sample_at)
all of those except TwoDArrayOfValues can be vectors.
If you want to sample at meshgrids, then build them:
t_sample_at = logspace(-1, 2, 20);
bore_sample_at = [0, logspace(-2, 2, 25)];
[G1, G2] = meshgrid( t_sample_at, bore_sample_at );
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