Hi,
I am trying to produce a grouped bar plot from a data.frame and I'm
having difficulties figuring out how to do so. My data is 500 rows by
4 columns and basically looks like so:
head(x)
V1V2V3V4
1 XOM 0.2317915 0.1610068 1.6941637
2 AAPL 0.6735488 0.7433611
Hi,
I am having a problem figuring out how to extract a subset of rows. I
have a list with 68 similar data.frames. Each data.frame is 500 rows
by 5 columns. I want to take one row from each data.frame based upon
the data in a particular column (i.e. it matches a symbol). For
example:
for? [Obviously untested for
the usual reasons...]
HTH,
Dennis
On Wed, Apr 20, 2011 at 4:13 PM, jctoll jct...@gmail.com wrote:
Hi,
I am having a problem figuring out how to extract a subset of rows. I
have a list with 68 similar data.frames. Each data.frame is 500 rows
by 5 columns. I
On Thu, Mar 17, 2011 at 10:32 AM, Joshua Ulrich josh.m.ulr...@gmail.com wrote:
On Wed, Mar 16, 2011 at 6:58 PM, jctoll jct...@gmail.com wrote:
Hi,
I'm struggling to figure out the way to change the name of a column
from within a loop. The problem is I can't refer to the object by its
actual
Hi,
I'm struggling to figure out the way to change the name of a column
from within a loop. The problem is I can't refer to the object by its
actual variable name, since that will change each time through the
loop. My xts object is A.
head(A)
A.Open A.High A.Low A.Close A.Volume
On Wed, Mar 16, 2011 at 8:20 PM, David Winsemius dwinsem...@comcast.net wrote:
On Mar 16, 2011, at 7:58 PM, jctoll wrote:
Hi,
I'm struggling to figure out the way to change the name of a column
from within a loop. The problem is I can't refer to the object by its
actual variable name
Hi,
I have what I think is some kind of linear programming question.
Basically, what I want to figure out is if I have a vector of numbers,
x - rnorm(10)
x
[1] -0.44305959 -0.26707077 0.07121266 0.44123714 -1.10323616
-0.19712807 0.20679494 -0.98629992 0.97191659 -0.77561593
mean(x)
On Wed, Feb 2, 2011 at 7:59 AM, Karl Ove Hufthammer k...@huftis.org wrote:
Dear list members,
I recall seeing a convenience function for applying multiple functions to
one object (i.e., almost the opposite of 'mapply’) somewhere.
Example: If the function was named ’fun’ the output of
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