Straight line approximation of elements in array

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I have a 21x1 array in which every other value is NaN:
s=[0 NaN 5 NaN 0 NaN 0 NaN 5 NaN 0 NaN 0 NaN 5 NaN 0 NaN 0 NaN 5];
I need to make a straight line from one surrounding value to the other for each NaN. For this case, it would be the averages, like 0 NaN 5 would be 2.5, because the surrounding values are 0 and 5, which would make the NaN become 2.5.
Basically I need to replace all the NaNs in this fashion and plot the new array.

Accepted Answer

Matt J
Matt J on 22 Mar 2022
Edited: Matt J on 22 Mar 2022
s=[0 NaN 5 NaN 0 NaN 0 NaN 5 NaN 0 NaN 0 NaN 5 NaN 0 NaN 0 NaN 5];
fillmissing(s,'linear')
ans = 1×21
0 2.5000 5.0000 2.5000 0 0 0 2.5000 5.0000 2.5000 0 0 0 2.5000 5.0000 2.5000 0 0 0 2.5000 5.0000
  5 Comments
Pesach Nestlebaum
Pesach Nestlebaum on 22 Mar 2022
Execution of script fillmissing as a function is not supported:
C:\Users\hipes\Downloads\fillmissing.m
Error in sf (line 2)
fillmissing(s,'linear')
Matt J
Matt J on 22 Mar 2022
Edited: Matt J on 22 Mar 2022
Did you download an mfile called fillmissing.m to the folder
C:\Users\hipes\Downloads\
If you aren't using it for something else, I suggest you get rid of it.

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