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Finding 4 closest values to a value in an array

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AAS am 28 Sep. 2020
Kommentiert: Sindar am 29 Sep. 2020
How do I find multiple points close to a particular number in an array? I can do this for one value but how do I extend that?

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Sindar am 28 Sep. 2020
use mink
[~,idx] = mink(abs(data-find_point),5);
  2 Kommentare
AAS am 29 Sep. 2020
Hi, Thankyou! How can I extend this to select maybe two values above and below the value I want?
Sindar am 29 Sep. 2020
You'd play around with (data-find_point) without the abs(). Algorithm something like:
  • separate data into values equal to, larger than, smaller than find_point
  • keep all equal to
  • find smallest 2 positive error
  • find largest 2 negative error

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