world coordinates convert to non integer grid coordinates

[Deniz Demirhan Barı]

Hi,



Does anyone knows why would it give such an error:



'world coordinates convert to non integer grid coordinates'



When I  set z  from 1  to 60  which are in km.



And define a variable "b"



define b=(pmb.4-pmb.4(z=1))



pmb is the pressure in mb and it is a parameter in the 4th file.



It gives the error  'world coordinates convert to non integer grid
coordinates'





Thank you



Deniz
















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