[Qgis-user] question about statistical analysis and histograms

Azzurra Lentini azzurralentini at gmail.com
Tue Jan 5 04:04:11 PST 2021

Hi Chris,
many thanks for your reply. I have used the tool and it works very well.
Thanks again. Azzurra

On Sat, 2 Jan 2021 at 17:19, chris hermansen <clhermansen at gmail.com> wrote:

> Azzurra and list,
> On Sat, Jan 2, 2021, 08:07 Azzurra Lentini <azzurralentini at gmail.com>
> 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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