Issue 110707

Summary: Sine regression trend line
Product: General Reporter: scmathes <matheso>
Component: chartAssignee: AOO issues mailing list <issues>
Status: CONFIRMED --- QA Contact:
Severity: Trivial    
Priority: P4 CC: elish, issues, rb.henschel
Version: 3.3.0 or older (OOo)   
Target Milestone: ---   
Hardware: All   
OS: All   
Issue Type: FEATURE Latest Confirmation in: 4.1.0-dev
Developer Difficulty: ---

Description scmathes 2010-04-08 19:34:01 UTC 
Please add trigonometric (sine) regression trend line as there are no periodic
data fitting models in Chart.  Excel has sine fitting which is nice, and would
be great as a starting point.  

What would be SUPER nice and would blow Excel out of the water for data fitting
would be compound curve fitting, to be able to select 2 models at a time, as to
model something like damped spring oscillations (exponential sine function) or
monthly mean temperature data over decades (seasonal sine changes superimposed
on linear warming trend).

Composite models may be shooting for the stars,but as a start Sine modeling
would still be very useful for everything from high school statistics to
engineering or environmental scientists.
Comment 1 Regina Henschel 2010-04-08 20:06:03 UTC 
Can you please tell me, where I find "sine fitting" in Excel?
Comment 2 scmathes 2010-04-09 00:54:08 UTC 
Oops, you're right regina, it's not Excel that can do Sine regression, it's the
TI-83 I also use for teaching types of regression curves.  Regardless, it is a
useful family to be able to model.
Comment 3 kla 2010-04-09 08:24:51 UTC 
@IHA: One more issue for your "enhancement collection"
Comment 4 Edwin Sharp 2014-03-02 15:43:36 UTC 
Confirmed with
AOO410m14(Build:9760)  -  Rev. 1573062
2014-03-01_04:11:01 - Rev. 1573123
Debian