[Qgis-user] Calculate GPS distance days daily with end of weeks

[Nicolas Cadieux]

Hi,
The general idea is probably to convert all the point for each day into line.  Then, you can use the vector field calculator to measure the distance.

Something like this would help. https://gis.stackexchange.com/questions/92751/draw-lines-from-points-in-qgis
Nicolas

> Le 26 janv. 2019 à 21:16, Mike Flannigan <mikeflan at att.net> a écrit :
> 
> 
> I too am interested in how best to do this in
> QGIS, but if you want to do it outside of QGIS,
> this may help:
> http://bluemm.blogspot.com/2007/01/excel-formula-to-calculate-distance.html
> 
> 
> Mike
> 
> 
>> On 1/25/2019 4:49 AM, qgis-user-request at lists.osgeo.org wrote:
>> Dear colleagues,
>> 
>> I ask for help: I have a layer of points with positions of birds marked
>> with GPS. One of the columns is the value of the date. The analysis I would
>> like to make is to empirically verify that individuals move from the area
>> where they usually live on newspaper days, during weekends, due to hunting
>> in the area.
>> My idea is to calculate distance to points, for example, distance of all
>> points of the week to the average GPS value of the diary days of that week.
>> In theory, if the bird moves during the weekend by hunting, the distances
>> of the days Saturday and Sunday should be greater than those of Monday,
>> Tuesday, Wednesday, Thursday and Friday.
>> How do you come up with this? Any other alternative?
>> 
>> Thank you very much in advance
> 
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