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CHANGES IN MAPA VERSION 2.0.7 (04 MAR 2024)

Updated statetranslate() to handle changes in smooth package (state name “seasonality” changed to “seasonal”)
By default all functions does not produce plots anymore.
Default combination operator changed to w.mean.

Minor improvement in plotting mapa.fit class objects. Now levels for which no seasonality is estimated are in grey.
Accomondate changes in smooth::es output.

Introduced es from smooth package as core for MAPA. This can handle any seasonal length and allows some additional flexibility in model search.
MAPAx implemented. Now you introduce exogenous variables using xreg input argument, which the user can pre-process using PCA.
Introduced new combinations: “w.mean” and “w.median”. These use mean or median for the combination of level and trend, but weight seasonality and xreg inversly proportional to the aggregation level. It is recommended to use these with high frequency time seres.

mapaest, mapa & mapasimple: the user can select to use either ets (forecast) or es (smooth).
Users can pass additional arguments to ets or es through ellipsis.
plotmapa: became obsolete, simply use plot().
mapacalc, mapasimple: the “output” input argument is removed.
mapasimple: simpified function wrapper.
Introduced S3methods.
Improved visualisation.
Colour scheme from RColorBrewer package.
smooth and RColorBrewer packages added to dependencies.
Switched ChangeLog to NEWS.md

Fixed bug introduced by changes in the initialisation of ETS when n < 3s and seasonality (s) = 2. The fix does not permit seasonal models in that case. If n >= 3s seasonality is permitted.

Added non-overlapping temporal aggregation function (tsaggr).
Added URL info in description.
Corrected bug in mapaest when actual was constant (ets returned different structure).

Added empirical prediction intervals for mapa and mapafor.
Added return to some functions that were missing it.
Plots in mapaest and mapafor re-initialise the plot figure.
Variable name insample replaced with y.
Added more help details for mapasimple and mapacalc outplot input.
Corrected bug in mapa that would not transfer model to mapaest.
Corrected bug in mapafor when ppy was equal to 1.
Corrected bug in mapasimple when fh was equal to 1. The bug was caused by the introduction of the model option in v1.4.

Stopped using forecast:::pegelsresid.C. New forecast package (v5.3) allows keeping initial values constant.

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