to find z values for same x values

Hello, I have a data like this (it's actually a bigger data, an example is shown here):

x: 0

y: 2

z: 0.3

x: 0

y: 1

z: 0.4

x: 1

y: 1

z: 0.7

I want to find z values for same x values. I mean what are the values for z when x=0 or when x=1. Thank you in advance.

[Rik]

Do you mean you want to select those values from your existing data? If so, how is your data stored? Fields of a struct array? Vectors? An array?

[Sila Dinc]

Yes I want to select some values from existing data. I saved the data using fopen and fprintf functions to txt file. I did not do anything to save them as vectors, sorry I'm beginner and trying to find out. Thank you!

[Rik]

First you need to read everything back to Matlab variables so you have a result like this:

x=[0 0 1];
y=[2 1 1];
z=[0.3 0.4 0.7];

Then you can use normal comparison tools like == and find.

Answer 1

[KSSV]

Read about griddata and scatteredIntepolant.