[Qgis-user] Population genetic data depicted with pie chart QGIS

[Richard McDonnell]

Giulia,
Not used it much, but had a look in *Layer Properties* under *Diagrams*, 
This will allow you to create Pie Charts you are looking for, in 
relation to size, you may have to play around with the settings, but 
there is a *Size* tab in diagrams, utilise *Scaled size*, pick your 
corresponding *Attribute*, click *Find* beside *Maximum Value* and set 
your *Size* *Scale* factor. Hope that helps!!

Regards,

Richard.



On 29/06/2016 15:03, Giulia Valvassori wrote:
> Dear all,
>
> I would like to use qgis to depict data derived from population 
> genetic analysis.
> I'm working with 7 different txt files (one for each sampling 
> location) with information relative to:
> -latitude of the sampling location
> -longitude of the sampling locaction
> -genetic clades identified in each sampling location
> -n° of individuals belonging to each clade
>
> I would like that each sampling location/txt file has got a pie chart 
> as marker with slice of different colours (according to the differents 
> clades) and different size (according to the number of individulas for 
> each clade).
>
> I'm working in a Windows 10 laptop with QGIS 2.14.2 Essen.
> Is there anyone that can explain me how to do it?
>
> Thank you very much in advance.
> Best regards,
> Giulia
>
>
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-- 
*_Richard McDonnell_*
*GIS Specialist PgD GIS AssocSCSI*
*OPW FRM Data Management*
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