Werid Problem

Dear all:

                 I have to replace 2 specified values (-99.0 and 999.9) into default missing value -9999. , in a double array (say aa). But Whatever methods I took, say:

aa = mask(aa, aa.eq.-99.0, False)
aa = mask(aa, aa.eq.999.9,False)

Or Loop and if case:

 do i = 0, dimsizes(aa)-1
           if(aa(i).eq.-99.0)then
              aa(i) = -9999.0
           end if
           if(aa(i).eq.999.9) then
              aa(i) = -9999.0
           end if
 end do

It just can only substitute the -99.0 into -9999.0, doesn't work to 999.9, can anyone tell me why and how??

Regards

Cheung

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Received on Thu Sep 22 10:36:44 2011