Is it possible to obtain the initial data after "smoothdata" function?
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I am smoothing the data with smoothdata(data, 'movmedian'). Is there any way to obtain the initial data after the smoothing is done?
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Star Strider
2022-12-13
0 个投票
In general, no.
Smoothing involves filtering of some sort, and that removes the higher-frequency details of the original signal, and once that information is removed, it is never again available.
It is best to always save the original data before doing any sort of filtering or other pre-processing operation.
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Miras Akhmetov
2022-12-13
Star Strider
2022-12-13
My pleasure!
‘It is best to always save the original data before doing any sort of filtering or other pre-processing operation.’
As I mentioned initially, keep a copy of the original data. Every filtering opearation I have encountered thus far has been irreversible.
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Image Analyst
2022-12-13
0 个投票
Sure there is. I assume you're putting the smoothed results back into the initial arrays. Just make a copy of it before you smooth it so you'll still have them.
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