Every study (also known as an indicator) [1] script must contain one call of the study annotation function, which has the following signature:
study(title, shorttitle, overlay, format, precision)
The study annotation determines the indicator’s general properties.
Only the title parameter is mandatory. It defines the name of the
indicator. This name will be used in the Indicators dialog box and is
independent of the name used to save the script in your Personal Library.
shorttitle is the short name of the indicator displayed on the
chart, if it must be different than the value of title.
overlay is a logical argument. If it is true then the study
will be added as an overlay on top of the main chart. If it is false
then it will be added in a separate pane. False is the default
setting. Note that if you change the parameter’s value in a script that is
already on a chart, you need to use the Add to Chart button to apply the change.
format defines the type of formatting used for study values appearing
on the price axis, in indicator values or in the Data Window.
Possible values are: format.inherit, format.price and format.volume.
The default is format.inherit, which uses the format settings from the chart,
unless precision= is also used, in which case it will override
the effect of format.inherit. When format.price is used,
the default precision will be “2”, unless one is specified using precision=. When
format.volume is used, the format is equivalent to precision=0 used in
earlier versions of Pine, where “5183” becomes “5.183K”.
precision is the number of digits after the floating point
used to format study values.
It must be a non-negative integer and not greater than 16.
If omitted, then formatting from the parent series on the chart will be used.
If the format is format.inherit and the precision parameter is used with a value,
then the study will not inherit formatting from the chart’s settings and
the value specified will be used instead, as if format=format.price
had been used.
Footnote
| [1] | Pine also has a strategy annotation function which is used to create a backtesting strategy rather than a study (or indicator). |