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ARIMA.R
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51 lines (22 loc) · 676 Bytes
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## Time Series Analysis with R
## Task 1: Introduction to Time Series
## Task 2:
# Load data - good time series example EuStockMarkets
data('EuStockMarkets')
?EuStockMarkets
# Covert data to time series format
# ARIMA Model
# Exploratory Analysis for time series components:
# Trend + Seasonality + Cyclicity
# Does it satisfy the core assumptions?
# Remove non-stationary part of the data - Unit Root Test
library("urca")
?ur.kpss
# Remove seasonality
# Model Fit
# Decide on the type of process
# Sample test (p,d,q) = (1,1,1)
#Maximum Likelihood
# Best Fit Model
library(forecast)
# Forecast