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Can anybody explain how to compute mean coordinates?

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    please clarify your question. What exactly are you try to do and what tools are you using? Jul 24, 2012 at 5:50
  • I am using the analysis tool whose name is mean coordinate.
    – Mauro
    Jul 24, 2012 at 12:42
  • What software are you using?
    – whuber
    Jul 24, 2012 at 12:51
  • I am using Quantum GIS.
    – Mauro
    Jul 24, 2012 at 13:08
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    This question describes how to compute mean coordinates in QGIS: gis.stackexchange.com/questions/29181/mean-coordinates-in-qgis. Is that what you're looking for?
    – whuber
    Jul 24, 2012 at 16:04

1 Answer 1

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The same way you calculate any mean from a set of numbers. The sum of the numbers divided by the count

Mean x = (X1 + X2 + X3....XN)/N
Mean Y = (Y1 + Y2 + Y3....YN)/N
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    I suppose there should be another possibilities, arithmetic mean is only relevant for planar coordinates.
    – user5332
    Jul 24, 2012 at 9:21
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    True, although with the lack of information in the question I just assumed planar.
    – Nathan W
    Jul 24, 2012 at 9:41
  • You are right. AFAIC, doing it on the sphere and/or on the ellipse (I think of WGS84) are also relevant. I also think of Delaunay Triangles, Voronoï Diagrams and the more involved computations implied.
    – user5332
    Jul 24, 2012 at 10:18
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    Thanks for the response! In WGS 84 are the same calculations?? Is correct to do this in every coordinate system or projection?
    – Mauro
    Jul 24, 2012 at 12:37

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