Message-ID: <alpine.LNX.2.00.1110050747540.25250@salmo.appl-ecosys.com>
Date: 2011-10-05T14:51:49Z
From: Rich Shepard
Subject: How to subset() from data frame using specific rows
In-Reply-To: <OFAE1707D9.DF900E7E-ONC1257920.004C000F-C1257920.004C3762@precheza.cz>
On Wed, 5 Oct 2011, Petr PIKAL wrote:
> But you do not loose them, your data frame is cut according to sites
> variable and put into a list
I know this, Petr. But adding them to the database table ensures that the
information is there, too.
This brings up another question, but I should put that on a different
thread. It's about process and work flow; that is, when can I use multiple
factors in the original data frame and when I need to split and subset the
data frame. I think it depends on how many factors can be specified by a
particular model or graph. Regardless, I'll hold off on this as I work
through these initial exploratory steps.
Thanks,
Rich