Bug report #15569

Size assistant fails to calculate min max from layer

Added by Paolo Cavallini about 4 years ago. Updated over 2 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Symbology
Affected QGIS version:3.0.0 Regression?:No
Operating System:Debian Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:No Copied to github as #:23492

Description

the size assistant here fails to calculate the min and max values for a variable. This might be due to a weird field name: 01/08/2015 01:00 (derived from an xls file).
File attached.

stat.zip (50.9 KB) Paolo Cavallini, 2016-09-15 08:34 AM

History

#1 Updated by Giovanni Manghi over 3 years ago

  • Easy fix? set to No
  • Regression? set to No

#2 Updated by Paolo Cavallini over 2 years ago

  • Description updated (diff)
  • Affected QGIS version changed from 2.16.2 to 3.0.0
  • Subject changed from Size assistance fails to calculate min max from layer to Size assistant fails to calculate min max from layer

Still true in QGIS 3

#3 Updated by Nyall Dawson over 2 years ago

  • Status changed from Open to Feedback

I think the issue here is that "01/08/2015" is a string field.

If I use the expression to_real("01/08/2015") in the size assistant then it works correctly.

Can you confirm?

#4 Updated by Paolo Cavallini over 2 years ago

  • Status changed from Feedback to Closed
  • Resolution set to fixed/implemented

In earlier versions the string field was listed among those usable by Assistant. Now the behaviour is correct.

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