Bug 420505

Summary:	Smoothing doesn't work if "Date" values are set as X-values
Product:	[Applications] LabPlot2	Reporter:	disuser
Component:	general	Assignee:	Alexander Semke <alexander.semke>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	latest
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:	https://invent.kde.org/kde/labplot/commit/a5dbcefbc8137ed98d95eb463c90daab78dbaaac	Version Fixed/Implemented In:	2.8
Sentry Crash Report:
Attachments:	An example of smoothing

Description disuser 2020-04-24 10:14:04 UTC

Smoothing doesn't work if "Date" values are set as X-values. However, it works if date is represented as Numeric. I attached the file.

1. Select "New cases".
2. Analyze and plot data > Smooth.
3. Whatever type of smoothing you choose, you will get:
"status: Not enough data points available.

Comment 1 disuser 2020-04-24 10:14:57 UTC

Created attachment 127820 [details]
An example of smoothing

Comment 2 Alexander Semke 2020-04-25 21:14:39 UTC

Git commit a5dbcefbc8137ed98d95eb463c90daab78dbaaac by Alexander Semke.
Committed on 25/04/2020 at 21:14.
Pushed by asemke into branch 'master'.

[analysis] allow to do smooting also for datetime and integer data.
FIXED-IN: 2.8

M  +26   -4    src/backend/worksheet/plots/cartesian/XYSmoothCurve.cpp

https://invent.kde.org/kde/labplot/commit/a5dbcefbc8137ed98d95eb463c90daab78dbaaac

Comment 3 disuser 2020-04-26 07:11:23 UTC

Thanks!