Re: [R] changing existing graphs optimally

From: hadley wickham <h.wickham_at_gmail.com>
Date: Thu 05 Apr 2007 - 17:44:19 GMT

On 4/5/07, Greg Snow <Greg.Snow@intermountainmail.org> wrote:
> Using traditional and lattice(trellis) graphics, the usual approach is
> to have your plotting commands in a script file (under windows you can
> use the one with the GUI, in linux/unix you can have a text editor open
> with the script). Then either run the commands by copy/paste or using
> the source function. Then when you see something tha you would like to
> change, just do the edits and rerun the code.
>
> The ggplot package has some functionality for first specifying the data
> that you want plotted, then how you want it plotted, then the command to
> actually create the plot. You can then modify how you want it plotted
> and replot again.

Yes, the current version of ggplot can this, although it's not very well exposed to the user. The current development version uses the idea of plot modification extensively, and it's also very easy to take the same plot specification and use it with a different data set.

Hadley



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