[Qgis-developer] Question about statistics panel

[Barry Rowlingson]

Ah yes, all the statistical summaries are computed here:

https://github.com/qgis/QGIS/blob/2aa2040e77b1682f00b4e00a4f19c8ff268e9499/src/core/qgsstatisticalsummary.cpp

and there its defined as the number of items in the thing that is
storing the item values:

case Variety:
  return mValueCount.count();




On Tue, Oct 20, 2015 at 6:25 PM, Rowlingson, Barry
<b.rowlingson at lancaster.ac.uk> wrote:
> I suspect its the number of different values that the attribute takes.
> So if all the chosen attribute values are "42", the variety is 1. If
> all the attributes are "42" except for one which is "leopard" and one
> which is "slartibartfast" then the variety is 3.
>
> I've got this from playing with selections from a small data set, but
> I expect the source will agree with me!
>
> Barry
>
>
>
> On Tue, Oct 20, 2015 at 2:27 PM, matteo <matteo.ghetta at gmail.com> wrote:
>> Hi all,
>> I'm a little bit confused about one parameter calculated in the
>> statistic panel, **Variety**.
>>
>> What should compute this operator?
>>
>> Thanks!
>>
>> Matteo
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