15 Commits

Author SHA1 Message Date
b331cdd716 Working on RL project 2026-03-07 08:28:10 +01:00
f4ee24c52c Add DANJOU_EcoSeriePIB.csv dataset containing economic indicators from 1990 to 2021 2026-03-02 09:34:30 +01:00
1ae577717a Add TD3.qmd to M2/Time Series 2026-02-20 16:56:13 +01:00
9b6ac0a8dd Replace backshift operator B with L and simplify differencing explanation in M2/Time Series/TD2.qmd 2026-02-18 14:49:57 +01:00
2854aa71d2 Add residual diagnostics and explanations for decomposition
- Add extraction/NA-cleaning of residuals and plots + ACF for additive and multiplicative decompositions
- Clarify why multiplicative seasonality fits AirPassengers better
- Update STL plot title
- Add ACF for the final differenced series
- Expand explanation of differencing operators and show combined differencing formula
2026-02-18 14:25:32 +01:00
12f6212e0c Format and clean up code style in Time Series TD2 2026-02-18 13:55:15 +01:00
ede97b228b Ajout de l'analyse des séries temporelles dans TD1.qmd et TD2.qmd, incluant des visualisations, des décompositions et des tests de stationnarité. 2026-02-17 14:00:53 +01:00
8747950696 fix typo 2026-02-13 16:45:56 +01:00
a4633ee8a4 Extend observation in TD2.Rmd: explain decompos() components and note fixed-seasonality assumption and sensitivity to outliers. 2026-02-13 16:44:59 +01:00
4555ef38eb Enhance seasonality note (mention summer peaks/winter troughs) and replace zoo::rollmean with base filter (remove library(zoo)) in TD2.Rmd 2026-02-13 16:33:20 +01:00
27d56ddb5c Utilise zoo::rollmean pour la moyenne mobile (k=12), ajoute library(zoo) et supprime stats::filter; renomme trend_mm en ma; met à jour le libellé du plot en "Différence tendancielle". 2026-02-13 16:31:22 +01:00
c737796abc Add tseries, separate trend/seasonal/final differencing plots and run KPSS/ADF stationarity tests 2026-02-13 16:28:12 +01:00
7d24531ecb Add TD2.Rmd in M2/Time Series (new R Markdown for time series exercises) 2026-02-13 16:18:06 +01:00
af055bc176 End of TP1 2026-02-09 12:11:31 +01:00
5b44bdcf1b Rename Time Series directory 2026-02-09 11:38:30 +01:00