Line plots in base graphics

Am I missing something obvious on how to draw multi-line plots in
base graphics?

In ggplot2, I can do:

But in base graphics, the best I can come up with is this:

Am I missing something obvious?

Hadley Wickham <hadley <at> rice.edu> writes:

Am I missing something obvious on how to draw multi-line plots in
base graphics?

In ggplot2, I can do:

data(Oxboys, package = "nlme")
library(ggplot2)

qplot(age, height, data = Oxboys, geom = "line", group = Subject)

But in base graphics, the best I can come up with is this:

with(Oxboys, plot(age, height, type = "n"))
lapply(split(Oxboys[c("age", "height")], Oxboys$Subject), lines)

[quoting removed to fool gmane]

Am I missing something obvious?

?reshape to wide format and matplot()?

On Wed, Apr 13, 2011 at 2:58 PM, Ben Bolker <bbolker <at> gmail.com> wrote:

Hadley Wickham <hadley <at> rice.edu> writes:

Am I missing something obvious on how to draw multi-line plots in
base graphics?

But in base graphics, the best I can come up with is this:

with(Oxboys, plot(age, height, type = "n"))
lapply(split(Oxboys[c("age", "height")], Oxboys$Subject), lines)

[quoting removed to fool gmane]

Am I missing something obvious?

?reshape to wide format and matplot()?

Hmmm, that doesn't work if your measurements are at different times e.g:

Oxboys2 <- transform(Oxboys, age = age + runif(234))

Am I missing something obvious on how to draw multi-line plots in base graphics?

In ggplot2, I can do:

data(Oxboys, package = "nlme")
library(ggplot2)

qplot(age, height, data = Oxboys, geom = "line", group = Subject)

But in base graphics, the best I can come up with is this:

with(Oxboys, plot(age, height, type = "n"))
lapply(split(Oxboys[c("age", "height")], Oxboys$Subject), lines)

Am I missing something obvious?

Thanks!

Hadley

--
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/