replace -28672 with NaN

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mahesh chathuranga
mahesh chathuranga 2014-7-21
评论： mahesh chathuranga 2014-7-21
I have MODIS image, fill value is -28672(No data area). I want to replace those as NaN. why I am doing this is, I dont want to use those values to further calculations. I used this I(I==-28672)=NaN; but it not displayed as NaN. it displayed as 0. I dont know why it is not working.my image(I) is in type int16.

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Robert Cumming
Robert Cumming 2014-7-21
You have answered your own question - your data type is a int16. A NaN is a double
See:
class(NaN)
It is type double.

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