[gxnet]: GRIDTRND.GX

[Emilson Leite]

Hello friends, I'm a new user of Geosoft 5.05 and I'm trying to use the procedure GRIDTRND.GX, to remove a trend from a grid of gravimetric data. But I have a problem in the results.   The parameters that I'm using use are: input grid file: arlivre.grd output grid file with trend removed: arlivre_resid.grd points to use: ALL Order to Remove: 2 Coefficients of removed polynomial: 6 Replace previously removed trend?: NO   When I display the residual grid (arlivre_resid.grd) I can see that the grid is the same of original grid (arlivre.grd) and it's shouldn't occur. The polynomial trend are not a constant value surface! Well, maybe I made a mistake in parameters but I don't think so.   Thank you, Emilson P. Leite