[R] Drawing a loess line
Gabor Grothendieck
ggrothendieck at gmail.com
Mon Feb 4 01:28:28 CET 2008
lattice has a type = "smooth" for this:
library(lattice)
xyplot(dist ~ speed, cars, type = c("smooth", "p"))
Or with a colored line:
xyplot(dist + dist ~ speed, cars, type = c("p", "smooth"), col =
1:2, distribute.type = TRUE)
In ggplot2 its also a one linear:
library(ggplot2)
qplot(speed, dist, data = cars, geom = c("point", "smooth"))
or with a colored line:
qplot(speed, dist, data = cars) + geom_smooth(colour = "red")
On Feb 3, 2008 3:29 PM, Marcin Kozak <nyggus at gmail.com> wrote:
> Dear all,
>
> To draw a lowess line on a plot was a piece of cake; to draw a loess
> line, however, seems not that easy. Is the loess plotting implemented
> at all in relation to the loess function, or do I have to look in
> add-on packages?
>
> Thanks,
> Marcin
>
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