Azzurra and list, On Sat, Jan 2, 2021, 08:07 Azzurra Lentini <[email protected]> wrote:
> Hi to all, > > I am using Qgis 3.16.1. > > I have a shape file of polygons of different zones classified by type of > vegetation (so each polygon has different type of vegetation and these > polygons have different surface). Each type of vegetation has a code > (string type: letters and numbers), so the field of type vegetation has > data type string (text). > > > I need to understand which kind of vegetation is more frequent (which type > of vegetation occupies a greater areal extension) and I would like to do a > histogram that shows the result. > I think you want the Vector Layer Histogram tool for this. I haven't used it myself but from what I read it should do the job. I imagine you'll need to add your area to the DBF. https://gis.stackexchange.com/questions/352859/how-to-create-histogram-to-visualize-features-value-in-qgis-3 An alternative is to add the area to the DBF and import the DBF into your favourite spreadsheet program. This would give you access to other statistical tools.
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