A predefined panel function that can be used to add a LOESS smooth based on the provided data.
panel.loess(x, y, span = 2/3, degree = 1,
family = c("symmetric", "gaussian"),
evaluation = 50,
lwd, lty, col, col.line, type,
horizontal = FALSE,
…, identifier = "loess")Variables defining the data to be used.
Graphical parameters for the added
line. col.line overrides col.
Ignored. The argument is present only to make sure that
an explicitly specified type argument (perhaps meant for
another function) does not affect the display.
Arguments to
loess.smooth, for which panel.loess is
essentially a wrapper.
A logical flag controlling which variable is to be treated as the
predictor (by default x) and which as the response (by
default y). If TRUE, the plot is ‘transposed’
in the sense that y becomes the predictor and x the
response. (The name ‘horizontal’ may seem an odd choice for
this argument, and originates from similar usage in
bwplot).
Extra arguments, passed on to
panel.lines.
A character string that is prepended to the names of grobs that are created by this panel function.
The object returned by loess.smooth.