remove holes and spikes from surfplot

i have data wich makes my surfplot witch huge spikes and with holes (NaN) how can i remove the spikes and holes and make the surfplot look smooth?

Answer 1

[Image Analyst]

Maybe try replacing outliers with the median value in the neighborhood.

Answer 2

[Bjorn Gustavsson]

To remove the nan-s use one of the inpaint-tools found on the matlab file exchange. Search for both inpaint_nans and inpaint.

To remove spikes use medfilt2, or if you do not have access to that function, use medfilt1 in both directions.

HTH.