::Free Statistics and Forecasting Software::

v1.2.1

 

:: Decomposition by Loess - Free Statistics Software (Calculator) ::

All rights reserved. The non-commercial (academic) use of this software is free of charge. The only thing that is asked in return is to cite this software when results are used in publications.

This free online software (calculator) computes the Seasonal Decomposition by Loess as proposed by Cleveland et al.
The article that describes the underlying methodology is available online at the Journal of Official Statistics
(a copy of the pdf is also available here).

Enter (or paste) your data delimited by hard returns.

Send output to:
Data
[reset data]
 
Seasonal period 
Seasonal window (?)
Seasonal degree (?)
Trend window (?)
Trend degree (?)
Low-pass window (?)
Low-pass degree (?)
Robust loess fitting 
Chart options
Width:
Height:
Title:



Source code of R module
Top | Output | Charts | References



Cite this software as:
Wessa P., (2013), Decomposition by Loess (v1.0.2) in Free Statistics Software (v1.2.1), Office for Research Development and Education, URL http://www.wessa.net/rwasp_decomposeloess.wasp/
The R code is based on :
R. B. Cleveland, W. S. Cleveland, J.E. McRae, and I. Terpenning (1990) STL: A Seasonal-Trend Decomposition Procedure Based on Loess, Journal of Official Statistics, 6, 3–73. (pdf)
Top | Output | Charts | References

To cite Wessa.net in publications use:
Wessa, P. (2017), Free Statistics Software, Office for Research Development and Education,
version 1.2.1, URL https://www.wessa.net/

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Software Version : 1.2.1
Algorithms & Software : Patrick Wessa, PhD
Server : www.wessa.net

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