about two y-axes, one y-axis with two groups

[lily li]

Hi ggplot2 users,

I have a dataframe like this:

DF

   time           ID  value1  value2

2010-01-01   1      0.1       124

2010-01-02   1      0.2       121

2010-01-01   2      0.1       124

2010-01-02   2      0.3       121

...

I want to plot value1 on the left axis, value2 on the right axis, time on the x-axis. Also, there are two lines for value1, with IDs 1 and 2. How to realize this in ggplot2?

Thanks for your help.

[Wouter van der Bijl]

See http://stackoverflow.com/questions/3099219/plot-with-2-y-axes-one-y-axis-on-the-left-and-another-y-axis-on-the-right

[Yaakov Borstein]

Maybe we should remove all GLS routines, confidence intervals, ..., maybe ban all estimation because they can (and will) be misused.

[John Kane]