Displaying 20 results from an estimated 7000 matches similar to: "Neural Nets (nnet) - evaluating success rate of predictions"
2006 Apr 18
6
lambda, uncertainty coefficient (& Somers D)
Dear colleagues in R,
Has anybody implemented the
1) (Goodman & Kruskal) lambda
or the
2) (Thiel's) uncertainty coefficient
statistics (in the asymmetric and symmetric forms), or is anyone aware
that they might reside in some package? A search in the R archives
does indicate that they are (somehow) part of the CoCo package, but I
would rather not start learning how to transform my
2006 Mar 08
3
Multiple logistic regression
Dear R-users,
Is there a function in R that classifies data in more than 2 groups using
logistic regression/classification? I want to compare the c-indices of
earlier research (lrm, binary response variables) with new c-indices
obtained from 'multiple' (more response variables) logistic regression.
Best regards,
Stephanie Delalieux
Department Biosystems
M?-BIORES
Group of Geomatics
2003 Mar 11
1
Goodman / Kruskal gamma
The Goodman/Kruskal gamma is a nice descriptive rank-order
correlation statistic, often used in psychology. It is nice
because it is easy to understand. It takes all pairs of values
of each variable and asks whether they are congruent (S+ is the
number in the same order for both variables) or discordant (S-,
opposite ranking). The statistic is (S+ - S-)/(S+ + S-). It is
like tau except for the
2008 Jan 02
9
lustre quota problems
Hello,
I''ve several problems with quota on our testcluster:
When I set the quota for a person to a given value (e.g. the values which
are provided in the operations manual), I''m able to write exact the amount
which is set with setquota.
But when I delete the files(file) I''m not able to use this space again.
Here is what I''ve done in detail:
lfs checkquota
2007 Aug 07
0
Goodman-Kruskal tau
On Wed, 1 Aug 2007, Upasna Sharma <upasna at iitb.ac.in> wrote:
> From: "Upasna Sharma" <upasna at iitb.ac.in>
> Subject: [R] Goodman Kruskal's tau
>
> I need to know which package in R calculates the Goodman Kruskal's
> tau statistic for nominal data. Also is there any implementation for
> multiple classification analysis (Andrews at al 1973) in R?
2002 Jun 19
1
best selection of covariates (for each individual)
Dear All,
This is not strictly R related (though I would implement the solution in R;
besides, being this list so helpful for these kinds of stats questions...).
I got a "strange" request from a colleage. He has a bunch (approx. 25000)
subjects that belong to one of 12 possible classes. In addition, there are 8
covariates (factors) that can take as values either "absence"
2003 Jul 11
2
Nonliner Rgression using Neural Nnetworks
Hi,
I am an old hand at chemistry but a complete beginner at statistics
including R computations.
My question is whether you can carry out nonlinear
multivariate regression analysis in R using neural networks, where the
output variable can range from -Inf to + Inf., unlike discriminant
analysis where the output is confined to one or zero. The library nnet
seems to work only in the latter
2007 Mar 08
2
Form.Element.select
Hi there,
is there any way to select part of an input element, not the whole of it,
keeping the cursor at the start of the selection?
As far as i can remember, about a year ago i saw a working page using this
feature, but i cannot find it now...
I hope someone can help me to find an answer to my question.
Anthyon
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2005 Mar 29
2
R-squared in Logistic Regression
Dear all,
How do I make R show the R-squared (deviance explained by the model) in
a logistic regression?
Below is how I write my syntax. Basically I want to investigate
density-dependence in parasitism of larvae. Note that in the end I
perform a F-test because the dispersion factor (residual deviance /
residual df) is significantly higher than 1. But how do I make R show
the
2020 Nov 10
2
Recovering expunged but not purged e-mails from mdbox with zlib compression
> On 10/11/2020 20:07 Daniel Sch?tze <dms at cwa.uk.com> wrote:
>
>
> Dear Aki
> Thank you. Unfortunately I'm struggling to get the right syntax for this as it looks like someone else was here too
> https://dovecot.org/pipermail/dovecot/2018-July/112441.html
> The location in my dovecot.conf is
>
>
2006 Jun 08
3
Reading in a table with ISO-latin1 encoding in MacOS-X (Intel)
Dear colleages in R,
I have earlier been working with R in Linux, where reading in a table
containing Scandinavian letters ("?", "?", and "?") in the header as
part of variable names has not caused any problem whatsoever.
However, when trying to do the same in R running on new MacOS-X (with
an Intel processor) with the same original text table does not seem to
2004 Feb 01
2
3 little questions
> From: Siegfried.Macho
>
> Dear R-helpers,
>
> 3 questions:
> 1. Is there a package that contains a routine for computing
> Kendall's W
> (coefficient of concordance), with and without ties ?
Is that the same as Kendall's tau, as in cor(..., method="kendall")?
> 2. Is there a package that contains a routine for computing
> Goodman' s
2006 Jul 12
2
YART (Yet Another Rails Talk)
This morning I gave a talk on Rails to the NYC CTO Club. The slides
for are online at
http://www.io.com/~jimm/writing/rails_ctoclub/s5/index.html. Hover
over the bottom right corner of the window to see the navigation
controls, including the one that brings up the notes. Printing the
slides works really well; the presentation includes CSS that formats
the whole thing for print output.
The main
2013 Dec 18
1
Fwd: Bad \usage lines question
Dear colleagues,
In checking a function I am adding to an R package, I get the following
warning pair:
...
Bad \usage lines found in documentation object 'nominal':
"\\method{print}{nominal}"(x, max.print = 10,
posthoc = "std.pearson.residuals.sign",
assoc = ifelse("univariate"
list(c("N", "alpha.X2",
2006 Oct 10
4
Use remote machine environmental variables
I am having an issue passing a command through ssh which uses an environment variable. I would like the environment variable to be read from the remote host, but it is being read from the local host.
For instance:
ssh rhost ls -lm $WWW_HOME
$WWW_HOME is set as /usr/www on local but /var/www on the remote so it is being read as :
ssh rhost ls -lm /usr/www
and I'd like it to be
ssh rhost
2006 Feb 23
1
PostgreSQL CASCADE not copied to test db
When the unit test harness creates a test database from the
development database, the ON DELETE CASCADE constraints I have on my
foreign keys are not copied into the test database. (I can tell by
looking at db/development_structure.sql.)
That means the fixtures can''t load/unload from the test database
properly. In other words, all my tests fail with the same error
message:
2020 Nov 10
2
Recovering expunged but not purged e-mails from mdbox with zlib compression
Yesterday I had to recover an e-mail which a user had deleted. If I
understand this correctly the message was expunged but not purged
(doveadm purge had not been run).
This e-mail was clearly still in the mdbox stored with zlib compression
as I could tell using the doveadm dump command (doveadm dump -t dbox
filename).
I could however not reveal the e-mail with the normal doveadm fetch -u
2003 Sep 11
1
how to make sip uri work
Lets say I have an * at my business, with 7960 SIP phones. All the sip
phones are registered using their extension number (like 305), but I would
also like to put my SIP URI on my business card and in a name format, not an
extension number (like lee.goodman), so that the SIP URI would read
lee.goodman@asterisk.company.com.
How would I set this up in extensions.conf?
I got
2006 Aug 10
4
1.1.5 Upgrade and config.load_path not working
Hey,
I am trying to upgrade to 1.1.5 and rails no longer finds my controllers the
live outside app/controllers. I was on 1.1.2 previously and here is my
setup
In environment.rb
config.load_paths += [File.join(File.expand_path(RAILS_ROOT),
"rails_shared/controllers") ]
config.load_paths += [File.join(File.expand_path(RAILS_ROOT),
"rails_shared/helpers") ]
2007 Feb 04
4
Announcing another R search engine
Hello all,
I wanted to announce a new R search engine I made that covers all the major
R mailing lists, CRAN, r-project.org, and more. Results are tabbed, so you
can refine the search. Current refinements include searching just the
mailing lists, searching just introductions, and searching the web for
source files ending in .R.
Please send comments and suggestions. If you want to add sites to