Interpolate between specific values in a data set
18 views (last 30 days)
Show older comments
I am having trouble trying to figure out how to interpolate between specific y values for 2 given x values from excel.
For example in excel:
X Y
1 0.2
2.2 0.35
3 0.4
4 0.5
then given an X value of 3.5 from a matlab output I would like to find the corresponding Y value, in this case it would be 0.45. Then store that and use that in the future. I am not sure how to search for where 3.5 would sit within the X column and then find the surrounding values to do the interpolation.
0 Comments
Accepted Answer
the cyclist
on 8 May 2022
Edited: the cyclist
on 8 May 2022
x = [1, 2.2, 3, 4];
y = [0.2, 0.35, 0.4, 0.5];
x0 = 3.5;
y0 = interp1(x,y,x0)
4 Comments
the cyclist
on 8 May 2022
@Reece Smith, if you can upload an example of the data and code that give a different result from what you expect, we could try to help you understand the difference.
More Answers (0)
See Also
Categories
Find more on Logical in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!