[R] Need to study and learn about better plots

[David Winsemius]

On Jul 2, 2009, at 11:26 AM, Mark Knecht wrote:

> On 7/2/09, Steve Lianoglou <mailinglist.honeypot at gmail.com> wrote:
>> Hi,
>>
>> On Jul 2, 2009, at 10:39 AM, Mark Knecht wrote:
>>
>>
>>> Hi,
>>> So far my plotting needs have been sort of ignored as I got
>>> acquainted with R this week, but now that I have the basics in place
>>> for the program I wanted to write  it's time for me to start  
>>> learning
>>> about how to make output that better suits my needs. I think I have
>>> two sort of charts I need to concentrate on learning how to produce:
>>>
>>> 1) Probably a trivial request - a single chart that has multiple  
>>> lines
>>> on it in different colors. I might have 500 to 1000 lines, all
>>> starting at 0,0 on the left  and proceeding to the right where they
>>> end either above 0 or below 0. There will groups of colors depending
>>> on the group they are part of. I'd like a legend on the right or
>>> bottom that explains the colors. I should be able to add or remove
>>> lines at any time.
>>>
>>> 2) The closest example of the second would be a multi-study chart  
>>> sort
>>> of like is typical in a lot of stock charting programs. Here's (I
>>> hope) a simple example:
>>>
>>> http://stockcharts.com/h-sc/ui?s=BAC
>>>
>>
>> One thing you could do is to peruse the R Graph Gallery to see what  
>> people
>> can do:
>>
>> http://addictedtor.free.fr/graphiques/
>>
>> In particular, the graph below looks *somehow* similar to the chart  
>> you
>> link to.
>>
>> http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109
>>
>>
>>> Keep in mind I've not used any command other than plot() and par()
>>> so far. I *very* new to this. I started looking at ggplot2 last  
>>> night.
>>> I haven't looked at Lattice.
>>>
>>
>> You're looking in the right place. Here's a blog that someone is  
>> writing as
>> they learn how to use ggplot2. His latest posts compare how to  
>> construct
>> graphics from the lattice book " Lattice: Multivariate Data  
>> Visualization
>> with R" using ggplot2:
>>
>> http://learnr.wordpress.com/
>>
>> That should be very useful.
>> Hope that helps,
>> -steve
>>
>> --
>> Steve Lianoglou
>
> What a great site! Thanks!
>
> The chart you point out looks very helpful. It's unfortunate that the
> download source link isn't functional right now, but I'll check that
> out. If you can get source for the graphs you're interested in then
> it's a great help.
>
> Thanks!
You may be choosing the wrong rl. Try the one under the R icon:

http://addictedtor.free.fr/graphiques/sources/source_109.R

David Winsemius, MD
Heritage Laboratories
West Hartford, CT