Interpolating Data - Basic Question

Hi!

I have a dataset consisting of a position and a signal - the signal is sampled at scattered positions. I would like to smooth this data and then interpolate it to fill in the intervening positions. I've been smoothing data with the commands:

>> hann250=hanning(250);
>> smooth250=conv(signal,hann250,'same');

But I am not sure how to interpolate the data - what commands can I use and what would I type? I'm totally new to MATLAB! I've attached a sample of my data from excel. Thanks,

- K

Answer 1

[Alex Taylor]

help interp1
help griddedInterpolant

[Kayleigh]

Unfortunately my mathematic skills are not very good and I often struggle to understand the in-built MATLAB help. Could you provide me with an example document where interpolation has been done or an example of how the commands are used? Thanks!