Bug report #19593
"Classify" button in graduated symbology may make too small a range
|Affected QGIS version:||3.2.1||Regression?:||No|
|Operating System:||Ubuntu 16.04.5||Easy fix?:||Yes|
|Pull Request or Patch supplied:||No||Resolution:|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||27420|
Auto-classified ranges that are created on the graduated symbology preference panel may not include features at the extremes of the field used for the ranges.
- Load the attached [[attachment:file.zip]] into QGIS
- Open the layer properties / symbology
- Select "Graduated"
- Select "val" as the column
- Select "Classify" to generate 5 classes from the data
- Hit "Okay" to return to the main view
When looking at the correct location on the map, all 6 points are visible. Points are located at (0,0) (10,0) (20,0) (30,0) (40,0) (50,0).
When looking at the correct location on the map, only 4 points are visible. The points with the lowest and highest values are outside of the generated categories and are not displayed. See the attached image (which has a duplicate of the initial layer to show text where the points should be.)