https://bugs.kde.org/show_bug.cgi?id=497924
Bug ID: 497924
Summary: No calculations possible with date values in functions
Classification: Applications
Product: LabPlot2
Version: 2.11.1
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: frontend
Assignee: alexander.se...@web.de
Reporter: robgrueb...@gmail.com
Target Milestone: ---
Created attachment 176891
--> https://bugs.kde.org/attachment.cgi?id=176891&action=edit
Image "Function Values - LabPlot" and Project File
Description
============
For example, it is not possible to calculate the current age from the date of
birth and the current date, as the date is apparently regarded as
non-numerical.
My use case is simple: continuous measurement of infant weight and
visualisation of weight development in the WHO Child Growth Standards Charts.
Steps to Reproduce
===================
1. Start LabPlot
2. Open project LB_Is05.lml
3. Select spreadsheet column “Age_days”
4. Context menu/Generate Data/ Function Values
5. Try to select “Date” for variable “x”
(see image "LPIS05_01_FuncVals.jpg")
Actual Result
============
Selecting "Date" is not possible.
Expected Result
==============
Allow calculations with Datetime values
My System
=========
Win10 Pro 64 bit, German
LabPlot V 2.11.1, Language=English
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