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I'm using QGIS version 3.4.2-Madeira. I have a point layer with 96 points in Germany and I want to calculate the 3 nearest neighbors of every point. I know this can be done with the Distance matrix function using the same layer as input and target, but I always get a distance of zero between all points which is definitely not correct. I tried the same with the QGIS Tutorial datasets to calculate the distance between two different point layers, that worked well.

Does anybody has an idea where the problem is?

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  • Check the coordinate system of the points layer. Is it unprojected? If so, try projecting it to a projected coordinate system and do it again. – wfgeo Jan 6 '19 at 11:40
  • It is EPSG: 4326 and the points are shown correctly on the map. My project coordinate system is the EPSG 3395 World Mercator – msloryg Jan 6 '19 at 13:35
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    this may possibly help: gis.stackexchange.com/questions/211038/… – pdavis Jan 6 '19 at 13:43

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