[R] plotting

[R. Michael Weylandt]

I think you'll find this easiest with ggplot2:

library(ggplot2)

ggplot(dat, aes(x = value, y = time, color = group, symbol = id)) +
geom_point()
# symbol = might not be the right argument -- I'm doing this from memory

or similar....

MW

On Thu, Mar 14, 2013 at 3:46 PM, li li <hannah.hlx at gmail.com> wrote:
> Hi alL,
>    I have a data frame with 4 columns: "value", "time",  "group" and "id".
>    I would like to plot "value" vs. "time" with different colors for
> different levels of "group" and
> different symbols for different values of "id".
>    I think I could do this but I would like to see what is an easier way to
> plot
> the data this way.
>    Thank you vey much.
>      Hanna
>
>         [[alternative HTML version deleted]]
>
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