SessionInfo

Library "SessionInfo"
Utility functions for session specific information like the bar index of the session.

inSession(spec) Returns true if the current bar is in the session specification.
Parameters:
spec: session.regular (default), session.extended or other time spec.
Returns: True if the current is in session; otherwise false.

minutesToLen(minutes, multiple) Converts the number of minutes to a length to be used with indicators.
Parameters:
minutes: The number of minutes.
multiple: The length multiplier.
Returns: math.ceil(minutes * multiple / timeframe.multiplier)

bar(spec, res) Returns the intraday bar index. May not always map directly to time as a bars can be skipped.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: The integer index of the bar of the session.

isFirstBar(spec, res) Returns true if the current bar is the first one of the session.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: True if the current bar is the first one of the session.

wasLastBar(spec, res) Returns Returns true if the previous bar was the last of the session.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: True if was the last bar of the session.

Notas de Lançamento

v2

Added:
maxBars(spec, res) Returns maximum (usual) number of bars per day.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: The max (usual) number of bars per day.

maxMinutes(spec, res) Returns maximum (usual) number of minutes per day.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: The max (usual) number of minutes per day.

daysToBars(spec, res) Returns the number of bars equal to the number of days based upon usual session length.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: The number of bars representing the number of days.

Notas de Lançamento

v3

Added:
isIn(spec) Returns true if the current bar is in the session specification.
Parameters:
spec: session.regular (default), session.extended or other time spec.
Returns: True if the current is in session; otherwise false.

isBefore(spec, res) Returns true if the bar is before before the session (default = regular) opens.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = timeframe.period).
Returns: True if before the session.

isAfter(spec, res) Returns true if the bar is before before the session (default = regular) opens.
Parameters:
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = timeframe.period).
Returns: True if before the session.

firstBarOfDay(daysBack, spec, res) Returns the number bars in the past to find the first bar of the session of a given day.
Parameters:
daysBack: The number of days in the past to count the bars.
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: The number bars in the past to find the first bar of the session of a given day.

Removed:
inSession(spec) Returns true if the current bar is in the session specification.

Notas de Lançamento

v4

Added:
lastBarOfDay(daysBack, spec, res) Returns the number bars in the past to find the last bar of the session of a given day.
Parameters:
daysBack: The number of days in the past to count the bars.
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = "1440").
Returns: The number bars in the past to find the last bar of the session of a given day.

Notas de Lançamento

v6
Fixed bug in array initialization.

Notas de Lançamento

v7
Fixed bug in firstBarOfDay

Notas de Lançamento

v8 Improved timeframe detection and response.

Notas de Lançamento

v9 param name change and improved runtime error messages

Updated:
firstBarOfDay(daysPrior, spec, res) Returns the number bars in the past to find the first bar of the session of a given day.
Parameters:
daysPrior: The number of days in the past to count the bars.
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = '1440').
Returns: The number bars in the past to find the first bar of the session of a given day.

lastBarOfDay(daysPrior, spec, res) Returns the number bars in the past to find the last bar of the session of a given day.
Parameters:
daysPrior: The number of days in the past to count the bars.
spec: session.regular (default), session.extended or other time spec.
res: The resolution (default = '1440').
Returns: The number bars in the past to find the last bar of the session of a given day.

Notas de Lançamento

v10 Corrected issue with .maxBars()

Notas de Lançamento

v11
Improved performance by using profiler and optimizing where possible.

Added:
isNewDay()
Returns true if the current bar is the first of a new day. Only useful for intraday timeframe.
Returns: True if the current is in session; otherwise false.

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