Oscillator · projosc
What it computes
Where the close sits between the Projection Bands of the same Length, as a percentage: 0 at the lower band and 100 at the upper.
It describes bars that have already printed. QuantZ does not claim this indicator has predictive value, and it is not a recommendation to do anything.
Inputs and lookback
- Length · default 14
Reads the high, low and close of each loaded bar. With the default settings the first value is on bar 14; earlier bars are left empty rather than padded.
What it assumes about the series
- Bars arrive oldest to newest at one interval, each with a finite open, high, low and close. The input is the chart’s loaded series, whatever its length.
- The function is given bars, not sessions: it does not know the timeframe, where a session opens, or that a gap in the tape is a gap.
- Warm-up bars are omitted rather than padded. The first value appears once the arithmetic has enough history, and nothing is drawn before it.
- While the newest bar is still forming, its value uses the live close and moves until the bar closes.
- When the two bands coincide (a window with no range) the position is undefined and reads 50.
- The line only: the moving-average trigger line some platforms add is not drawn.
Whether a drawn value can change
forming-bar · Moves only on the forming bar. The newest bar’s value moves with its live close until that bar closes. Appending later bars leaves closed-bar values unchanged. Loading older history or correcting input bars can change them; each entry states its history assumptions.
This class is read from the registry entry and checked by a test against the function itself: for a class that says closed bars are final, appending a bar must leave every earlier point unchanged, and for a class that says they are not, it must not.
Outside its inputs
- Nothing outside the loaded bars: no longer history than the chart has loaded, and no other interval.
- Nothing inside a bar: no individual trades, no order book, no bid or ask.
- No other symbol, no benchmark, no news, no fundamentals, no earnings dates.
- Volume is not read at all.