On Wed, Oct 20, 2010 at 6:30 PM, Simone Gabbriellini
simone.gabbriell...@gmail.com wrote:
Hello List,
I would like to connect to a postgreSQL database on a remote server and I am
wondering what is the best package to do that. I have just installed RpgSQL,
RPostgreSQL, Rdbi and RODBC.
I
On Sun, Oct 17, 2010 at 10:01 AM, Coen van Hasselt
coenvanhass...@gmail.com wrote:
Hi all,
Using xyplot I want to print to Y variables (y1, y2) versus X, conditional
on the group.
How can I obtain a line (type=l) for one relationship (ie. y1 ~ x) and
points (type=p) for the other (y2 ~ x) ?
Hi,
A. In a nutshell:
The training error, obtained as error (ret), from the return value
of a ksvm () call for a eps-svr model is (likely) being computed
wrongly. nu-svr and eps-bsvr suffer from this as well.
I am attaching three files: (1) ksvm.R from the the kernlab package,
un-edited, (2)
Hi,
(please Cc me)
In xyplot (), type = l (or one that includes l, *el*) is
(generally) meaningful only when the 'x' variable is sorted. In
practice, one either sorts the data frame before hand or writes a tiny
panel function which sorts the supplied x and then calls the default
panel.xyplot().
On Tue, Jul 27, 2010 at 12:41 AM, Deepayan Sarkar
deepayan.sar...@gmail.com wrote:
On Mon, Jul 26, 2010 at 9:11 PM, Prasenjit Kapat kap...@gmail.com wrote:
Hi,
(please Cc me)
In xyplot (), type = l (or one that includes l, *el*) is
(generally) meaningful only when the 'x' variable is sorted
Hello:
[Kindly Cc when replying]
The question in a nutshell is this: Is there a more robust alternative
to Ecdf ()?
The details:
I've used Ecdf () _a lot_ over the past few years and I have learned
to live with its warnings. But I am running short on time and patience
now [*] Here is a
Hi,
I have a matrix M, quite a few ( 1/4th) of its eigen values are of
O(10^-16). Analytically I know that M is positive definite, but
numerically of course it is not. Some of the small (O(10^-16)) eigen
values (as obtained from eigen()) are negative. It is the
near-singularity that is causing
Moshe Olshansky m_olshansky at yahoo.com writes:
How large is your matrix?
Right now I am looking at sizes between 30x30 to 150x150, though it will
increase in future.
Are the very small eigenvalues well separated?
If your matrix is not very small and the lower eigenvalues are clustered,
Hi,
plot(1,1, cex=2) means that the size of the plotting character (empty
circle in this case) is double the default size. Now my question is:
What characteristic of the symbol (circle) is double? Is it the area
or the diameter?
What if the symbol is not a circle, what is the generic meaning of
Hi,
Thank you Prof Ripley for the response.
On 10/4/07, Prof Brian Ripley [EMAIL PROTECTED] wrote:
On Thu, 4 Oct 2007, Prasenjit Kapat wrote:
Hi,
plot(1,1, cex=2) means that the size of the plotting character (empty
circle in this case) is double the default size. Now my question
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