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# Volume of Nile River at Aswan
This is a dataset on the volume of the Nile river at Aswan for the period
1871-1970. The data is obtained from the website of the book [Time Series
Analysis by State Space Methods](http://www.ssfpack.com/DKbook.html) by Durbin
and Koopman. The data is also available in the R ``datasets`` package, which
is part of R and is therefore licensed under version 2 of the [GNU Public
License](https://www.r-project.org/COPYING). The data file produced from this
data (``nile.json``) is therefore licensed under GPLv2 as well.
A potential change point occurs in 1898 with the introduction of a dam.
Note that this is not the Nile dataset used in other change point papers,
which covers a period from 622 to 1284 AD (see e.g. Witcher et al. (2002)).
That dataset, [available
here](https://web.archive.org/web/20000815223740/http://lib.stat.cmu.edu/S/beran),
has been used in many papers to detect the introduction of a nilometer in the
year 715 AD.
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