Interpolating Data - Basic Question

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Kayleigh
Kayleigh 2013-11-27
编辑： Walter Roberson 2013-11-27
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

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回答（1 个）

Alex Taylor
Alex Taylor 2013-11-27
help interp1
help griddedInterpolant
  1 个评论
Kayleigh
Kayleigh 2013-11-27
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!

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