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R and Time
Series Data
Time Series
Decomposi-
tion
Time Series
Forecasting
Time Series
Clustering
Time Series
Classification
R Functions &
Packages for
Time Series
Conclusions
Outline
1
R and Time Series Data
2
Time Series Decomposition
3
Time Series Forecasting
4
Time Series Clustering
5
Time Series Classification
6
R Functions & Packages for Time Series
7
Conclusions
2/42
R and Time
Series Data
Time Series
Decomposi-
tion
Time Series
Forecasting
Time Series
Clustering
Time Series
Classification
R Functions &
Packages for
Time Series
Conclusions
R
a free software environment for statistical computing and
graphics
runs on Windows, Linux and MacOS
widely used in academia and research, as well as industrial
applications
over 3,000 packages
CRAN Task View: Time Series Analysis
http://cran.r-project.org/web/views/TimeSeries.html
3/42
R and Time
Series Data
Time Series
Decomposi-
tion
Time Series
Forecasting
Time Series
Clustering
Time Series
Classification
R Functions &
Packages for
Time Series
Conclusions
Time Series Data in R
class ts
represents data which has been sampled at equispaced
points in time
frequency=7: a weekly series
frequency=12: a monthly series
frequency=4: a quarterly series
4/42
R and Time
Series Data
Time Series
Decomposi-
tion
Time Series
Forecasting
Time Series
Clustering
Time Series
Classification
R Functions &
Packages for
Time Series
Conclusions
Time Series Data in R
> a <- ts(1:20, frequency=12, start=c(2011,3))
> print(a)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
2011 1 2 3 4 5 6 7 8 9
2012 11 12 13 14 15 16 17 18 19 20
Dec
2011 10
2012
> str(a)
Time-Series [1:20] from 2011 to 2013: 1 2 3 4 5 6 7 8 9 10 ...
> attributes(a)
$tsp
[1] 2011.167 2012.750 12.000
$class
[1] "ts"
5/42
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