forge.series

Forge API 1

Helpers over arrays that only look backward.

Each function here gives the value at bar ``i`` from bars ``i`` and before. There is no way to pull a later value onto an earlier bar: ``shift`` takes a number of bars back, and ``rolling`` has trailing windows only, with no ``center`` argument. Every result is a new, read-only array of the same length.

Import it with ``from forge import series``.

Name	Kind	Summary
highest	function	The highest of the last ``window`` values ending at each bar.
lowest	function	The lowest of the last ``window`` values ending at each bar.
rolling	function	The ``how`` of the last ``window`` values ending at each bar, NaN until ``window`` values exist.
shift	function	``x`` moved ``n`` bars later, so the value at bar ``i`` is ``x[i - n]``.