TimeSeriesDataset

[NicoZweifel]

Feature description

Created from splitting up #1551.

A generic TimeSeriesDataset for timeseries prediction (pytorch example).

Feature motivation

Have used a specific implementation in #1532 and determined a generic approach would be a great addition.

Steps

• gather requirements
• design api
• implementation
• update book

Notes

A potential feature could be automatic sorting by a property selector (date), sth like:

data.sort_by(|a, b| {
    selector(a)
        .partial_cmp(selector(b))
        .unwrap_or(std::cmp::Ordering::Equal)
});