2D Interpolation with different sized matrices

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Senal Perera
Senal Perera on 18 Jan 2021
Commented: Senal Perera on 20 Jan 2021
x = [1 2 3 4 5];
y = [1 2 3 4 5];
z = [1 2 1 2 3; 3 4 3 4 5; 5 6 5 6 7; 3 4 3 4 5; 1 2 1 2 3];
]
Hello,
Is there a method to obtain the corresponding x value when the y and z values are provided? I tried interp2 which gives the value of z when x and y are given. The command does not offer me the expected option. Can somebody guide me to solve my problem?
Thanks in advance.
  1 Comment
Jan
Jan on 18 Jan 2021
Please provide an example of the inputs and the wanted output.

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Answers (1)

Jan
Jan on 18 Jan 2021
A bold guess of what "corresponding x value when the y and z values are provided" means:
x = [1 2 3 4 5];
y = [1 2 3 4 5];
z = [1 2 1 2 3; 3 4 3 4 5; 5 6 5 6 7; 3 4 3 4 5; 1 2 1 2 3];
yWant = 2;
zWant = 3;
match = (y == yWant) & (z == zWant); % Auto-expand, Matlab >= R2016b
xResult = x(any(match, 1));
  3 Comments
Senal Perera
Senal Perera on 20 Jan 2021
sorry for the inconvenience. I need to get the value of x as the output. The two inputs will be y=2.5 and z=4.5

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