<DIV id=RTEContent>Hi all;</DIV>  <DIV>&nbsp;</DIV>  <DIV>How to cross-validate the interpolation results? I have used IDW module.</DIV>  <DIV>Can r.mapcalc help me or I have to write a new script or module?</DIV>  <DIV>&nbsp;</DIV>  <DIV>Thank you for all...</DIV>  <DIV>Best regards....</DIV>  <DIV>Muzaffer...</DIV><p>
        
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