Hi, It would help if you gave what algorithms you are using. There is a Gdal and a QGIS idw interpolation method and they are not working the same way. Also, QGIS has a quick way of determining the min max value that are an estimate of the true values. Use Gdal info with flag -stats to get the true values. You will find that in the processing plugin.
https://gdal.org/programs/gdalinfo.html Nicolas Cadieux https://gitlab.com/njacadieux > Le 9 juin 2022 à 10:33, Thibaut Bouveroux via Qgis-user > <[email protected]> a écrit : > > Hi everyone, > > I am trying to make an IDW interpolation analyses using salinity data in a > bay. My values ranges between 0.1 to 13.1 PSU. When making my interpolation > with 148 data points, the interpolation output ranges between 0.0034 to 12.40 > and so doesn't fit 100% with the dataset. Can someone has na idea why? Using > the same data set in ArcMap, the interpolation I made ranged between 0.1 and > 13.1 and does fit 100% with my dataset. > > Thanks a lot for your assistance, > > Best, > > Thibaut > > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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