Interpolating Data - Basic Question

2013 11 27
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更新时间：2013 11 27
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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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Alex Taylor
Alex Taylor 2013-11-27

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help interp1
help griddedInterpolant

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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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