How to fill NaN values in 3d array using interpolation?

I have 3 dimansion array:

precipitation=(longitude*latedute*time)

in the precipitation array I have bunch of NaN values, now i want to fill this values using interpolation.

my matlab version is R2015a.

I want to interpolate NaN values based on nearest non-missing value.

if you can write me a sample code or something I would be thankfull.

best regards.

Answer 1

[Stephen23]

The simple solution is to download this:

https://www.mathworks.com/matlabcentral/fileexchange/4551-inpaint_nans

[BN]

Dear Stephen

thank you, but in the caption of this file we read that: Interpolates (& extrapolates) NaN elements in a 2d array.

but I have array= lon*lat*time

you think still I can use this file or not?

thank you again.

[Stephen23]

Download this:

https://www.mathworks.com/matlabcentral/fileexchange/21214-inpainting-nan-elements-in-3-d

Or you could write something yourself using a scattered interpolant:

https://www.mathworks.com/help/matlab/math/interpolating-scattered-data.html

[BN]

Thank you