[R] Extract one element from yahooKeystats data
jctoll at gmail.com
Tue Apr 28 02:16:06 CEST 2009
On Mon, Apr 27, 2009 at 5:42 PM, David Winsemius <dwinsemius at comcast.net> wrote:
> Using str(data) would have been more informative.
> "data" it turns out is a dataframe with a single column. which is a factor
> with rownames. Not the most typical of constructions, but the authors must
> have had their reasons ....
> #  1.30B
> # 52 Levels: -1.00% -11.40% -18.69% -38.03% 0.04% 0.78 06-Feb-09 09-Mar-09
> ... NA
> # ... or to get rid of those annoying factor levels...
> as.character(data[row.names(data)=="Float", ] )
> #  "1.30B"
Thank you. I was in the middle of trying to respond to your first
post when I got your second containing the answer.
My problem is that I didn't understand the structure of the data and I
couldn't figure out the relationship of the row names to the data so I
was trying everything under the sun, yet nothing was yielding the
results I wanted.
On my own, I was able to retrieve the data using:
52 Levels: -1.00% -11.40% -18.69% -38.03% 0.04% 0.78 06-Feb-09
09-Mar-09 1.176 1.30% 1.30B 1.32B 1.40% 1.7 10.304 100.84B ... NA
But that seemed too brittle to be used reliably. I wanted a way to
get to the data using what I now know to be the row name. I'm sorry
my initial question was so vague/uninformative. Through brute force,
I had tried dozens of different ways to coax out the information I
needed. What I really needed was a better understanding of the data
Thanks so much for your help.
More information about the R-help