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<p><font size="2">hello,</font><br>
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<font size="2">I have a timseries dataset of monthly precip data from rain guages. The coverage is relatively sparse (approx 30 stations covering the country) and there is strong anisotropy in the data - at the monthly timestep data is strongly correlated in the E-W direction. Is there any way to use modify the IDW interpolation in gstat, to incorporate a directional bias in the distance weight? </font><br>
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<font size="2">many thanks for any suggestions</font></body></html>