This function especially extracts the data if an aesthetic variable is specified in the reference line parameters.
getDataReferenceLines(refLinePars, data, facetPars = NULL)
List of data for the lines
(optional) Nested list, with parameters for each reference line(s). Each sublist (a.k.a reference line) contains:
aesthetic value(s) or variable(s) for the lines
(in this case column names of data
) for reference lines.
The line position is controlled by the aesthetics supported in
geom_vline
, geom_hline
and geom_abline
.
'label': (optional) Logical specifying if the line
should be annotated (FALSE
to not annotate the line)
or string with annotation label. By default, the value
of the position of the horizontal/vertical line or the equation
of the diagonal line is displayed.
Data.frame with data.
List with facetting parameters,
passed to the facetting function. Variables should be specified
as character or formula.
For 'wrap' facetting (facetType
is 'wrap'), if the layout
is not specified via nrow
/ncol
, 2 columns
are used by default.
Laure Cougnaud