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I don't know if you could help me in this:

I have 7 points (x coordinate is known and variable) (y coordinate is known and fixed) each point represents a position of the same object in a specific time of the year (say January 1984, January 1986 ,January 1999.....)

How could I know the expected position in (say January 2014?) using Arcgis?

Yours

Habboub

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I'd, honestly, do it in a spreadsheet and bring it back. Work out the annualised rate of movement for the x coordinate (distance between X's over the observation period) and use that for the projection. I'm sure that there is a way to do similar using Python - but this would be the most straight forward approach. You could even have a look at the trajectory of the X - does it vary, is there a pattern to the variation (by time period) - and use this that to weight the distance. – Andy TIce Feb 27 at 6:26
According to me you can try 3d analyst or Geo-statistical analyst.. OR use some regression_analysis (resources.esri.com/help/9.3/arcgisdesktop/com/gp_toolref/…) – Sunil Feb 27 at 8:00
Yes , I could do it on excel but I have lots of such point groups which will take a very long time – MOHAMMED HABBOUB Feb 27 at 16:58
Well, I read the regression_analysis pdf... but I still don't know how could I do it – MOHAMMED HABBOUB Feb 27 at 16:58

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