Decompose a time series into seasonal, trend, and remainder components using an implementation of Seasonal Decomposition of Time Series by Loess (STL) that provides several enhancements over the STL method in the stats package. These enhancements include handling missing values, providing higher order (quadratic) loess smoothing with automated parameter choices, frequency component smoothing beyond the seasonal and trend components, and some basic plot methods for diagnostics.
Package details 


Maintainer  Ryan Hafen <rhafen@gmail.com> 
License  BSD_3_clause + file LICENSE 
Version  0.5.1 
URL  https://github.com/hafen/stlplus 
Package repository  View on GitHub 
Installation 
Install the latest version of this package by entering the following in R:

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