LocalLimit

Library "LocalLimit"
Calculates the local upper or local lower limit for a given series. Applying multiple passes produces what appears like support or resistance levels.
See Local Limits for more detail.

upper(src) Produces the recent local upper limit for a given series.
Parameters:
src: The source series to derive from.

lower(src) Produces the recent local lower limit for a given series.
Parameters:
src: The source series to derive from.

Notes de version

v2 Added option for padding.

Updated:
upper(src, padding) Produces the recent local upper limit for a given series.
Parameters:
src: The source series to derive from.
padding: Gives some extra room when lowering the level.

lower(src, padding) Produces the recent local lower limit for a given series.
Parameters:
src: The source series to derive from.
padding: Gives some extra room when raising the level.

Notes de version

v3 Fixed issue with na padding causing nothing to show.

Notes de version

v4 Handle NA values.

Notes de version

v5 Restored previous demo code. Added trend function.

Notes de version

v6 added trend function (missing export).

Added:
trend(src) Determines the local trend of a series that and persists the trend if the value is unchanged.
Parameters:
src: The source series to derive from.
return +1 when the trend is up; -1 when the trend is down; 0 if the trend is not yet established.

Notes de version

v7

Added:
valueAndTrend(src)
Creates a Limit object that contains the value and the trend.
Parameters:
src: The source series to derive from.

of(level, padding)
Creates a Level object representing the local upper and lower limits.
Parameters:
level: The source levels to expand of.
padding: Gives some extra room when raising the lower level and lowering the upper level.

Limit
Fields:
value
trend

Level
Fields:
upper
lower

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