{{alias}}( [options] )
    Returns data for Charles Joseph Minard's cartographic depiction of
    Napoleon's Russian campaign of 1812.

    Data includes the following:

    - army: army size
    - cities: cities
    - labels: map labels
    - temperature: temperature during the army's return from Russia
    - rivers: river data

    Temperatures are on the Réaumur scale. Multiply each temperature by `1.25`
    to convert to Celsius.

    River data is formatted as GeoJSON.

    River data is incomplete, with portions of rivers missing.

    Parameters
    ----------
    options: Object (optional)
        Function options.

    options.data: string (optional)
        Dataset name.

    Returns
    -------
    out: Object|Array<Object>
        Minard's data.

    Examples
    --------
    > var data = {{alias}}();
    > var army = data.army
    [...]
    > var cities = data.cities
    [...]
    > var labels = data.labels
    [...]
    > var river = data.river
    {...}
    > var t = data.temperature
    [...]

    References
    ----------
    - Minard, Charles Joseph. 1869. *Tableaux graphiques et cartes figuratives*.
    Ecole nationale des ponts et chaussées.
    - Wilkinson, Leland. 2005. *The Grammar of Graphics*. Springer-Verlag New
    York. doi:10.1007/0-387-28695-0.

    See Also
    --------