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.

[Stephen23]

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.

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Steven Lord]

Take a look at the interp2 function.

[John D'Errico]

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]

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 );