[Qgis-community-team] classification modes in graduated symbology

[Matteo Ghetta]

HI all again,
I added this small description here:

https://github.com/qgis/QGIS-Documentation/commit/acc42223866a7f8a9f3b1e70afaa1bf96cca2bac

feel free to remove it or correct it or do what you want. :)

Matteo

2014-11-17 12:17 GMT+01:00 Matteo Ghetta <matteo.ghetta at gmail.com>:
> Hi all,
> I know it's too late (maybe not) I think it's worth to add a very
> small description to the equals, quantile, pretty breaks, etc..
> classification in the graduated renderer menu.
> I can handle this, but I'm not totally sure of the content.
>
> Here what I understood:
> * equals: classes have the same range (e.g. field goes from 0 to 16, I
> want 4 classes, intervals are each 4 units)
> * quantile: classes have the same number of elements on the inside
> (the idea of a boxplot)
> * natural breaks: the variance within each class is minimal while the
> variance among classes is maximal
> * pretty breaks: the same of natural breaks but the extremes number of
> each class are integers
> * standard deviation: ranges are created depending on the standard deviation
>
> If possible I can add this lines in the documentation. Someone can
> help me to improve the description?
>
> Cheers
>
> Matteo