Linear Interpolation code ...

I have a data set (x) containing 1024 data and another corresponding data set (y).

What I want to do is find out which two numbers integers are in x, and use these two numbers and the corresponding y value in the formula below and find p value for every integer.

p = [(y2-y1) / (x2-x1)] * (i-x1) + y1

i = 178,179 ... 1931 (integers)

x1 <i <x2

y1 and y2; Corresponding values to x1 and x2.

x = 177.1458, 179.1622, 181.178 ...., 1930.821

y = 653, ..., 300

thank you in advance

Answer 1

[Matt J]

p=interp1(x,y,  ceil(x(1)):floor(x(end))  );

[ddmm]

thanks