Bug report #13614
Erroneous gaps in the histogram when column type is integer
Status: | Closed | ||
---|---|---|---|
Priority: | Normal | ||
Assignee: | - | ||
Category: | Symbology | ||
Affected QGIS version: | master | Regression?: | No |
Operating System: | Easy fix?: | No | |
Pull Request or Patch supplied: | No | Resolution: | end of life |
Crashes QGIS or corrupts data: | No | Copied to github as #: | 21652 |
Description
I noticed erroneous gaps in the histogram in many cases.
Attached are examples from Natural Earth's countries name_len.
Also a comparison between a histogram in R and the same in QGIS (both using the same number of bins I believe, I used Freedman-Diaconis in R, I think QGIS uses that too).
I am on ae1250b on Archlinux, not totally up to date with master.
History
#1 Updated by Johannes Kroeger about 9 years ago
- File histogram_gaps.jpg added
#2 Updated by Nyall Dawson about 9 years ago
- Status changed from Open to Feedback
Can you share your data? Just a CSV with the values from the column used is enough
#3 Updated by Johannes Kroeger about 9 years ago
Open the Shapefile from http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_admin_0_countries.zip
Choose a graduated style and classify by "name_len". Switch to Histogram tab and play around.
#4 Updated by Nyall Dawson about 9 years ago
- Subject changed from Erroneous gaps in the histogram to Erroneous gaps in the histogram when column type is integer
#5 Updated by Giovanni Manghi about 9 years ago
- Category set to Symbology
- Status changed from Feedback to Open
#6 Updated by Giovanni Manghi over 7 years ago
- Regression? set to No
- Easy fix? set to No
#7 Updated by Giovanni Manghi almost 6 years ago
- Resolution set to end of life
- Status changed from Open to Closed
End of life notice: QGIS 2.18 LTR
Source:
http://blog.qgis.org/2019/03/09/end-of-life-notice-qgis-2-18-ltr/