Displaying 20 results from an estimated 2000 matches similar to: "Multiple logistic regression"
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 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
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",
2010 Dec 09
2
Reshape Columns
Hello,
I have a general formatting question. I have two columns of data:
ColA <- c("m", "m", "m", "m")
ColB<- c("d","d","d","d")
And I would like to reorder them into a new column that looks like this:
ColC<-
2009 Sep 11
2
How to Label Certain Lags for a PACF Graph
When I use the command for PACF, lags 5, 10, 15, and 20 are labeled. I would
like to label lag 1. I would greatly appreciate if someone could tell me how
to do this. Below is the command that I am using:
pacf(data$R1,main="Series R1 Residuals")
[[alternative HTML version deleted]]
2007 May 06
3
Neural Nets (nnet) - evaluating success rate of predictions
Hello R-Users,
I have been using (nnet) by Ripley to train a neural net on a test dataset, I have obtained predictions for a validtion dataset using:
PP<-predict(nnetobject,validationdata)
Using PP I can find the -2 log likelihood for the validation datset.
However what I really want to know is how well my nueral net is doing at classifying my binary output variable. I am new to R and I
2007 Mar 06
2
parse error with if else (PR#9551)
Full_Name: Stephanie MAHEVAS
Version: 2.4.1
OS: Windows NT
Submission from: (NULL) (134.246.55.50)
the two following instructions provide a synthax error :
if ( 5 > 4 ) cat("ok1")
else cat("ok2")
and
if ( 5 > 4 ){ cat("ok1")}
else cat("ok2")
whereas these ones don't
if ( 5 > 4 ) cat("ok1") else cat("ok2")
and
if (
2012 Jan 27
2
Placing a Shaded Box on a Plot
Hello,
I would like to place shaded boxes on different areas of a
phylogenetic tree plot. Since I can not determine how to find axes on
the phylogenetic tree plot I am not able to place the box over certain
areas. Below is example code for the shaded box that I have tried to
use, and the first four values specify the position.
rect(110, 400, 135, 450, col="grey",
2012 Jul 12
3
plot graph by first letter
Hi all, may i know is it possible to plot a graph by first letter?
for example:
Name: Age:
Angel 20
Amelia 20
Bernard 19
Stephanie 20
Vanessa 22
Angeline 23
Camel 21
If I want to plot the name started with letter 'A' and their Angel,
2025 Jan 15
1
Weird and changed as.roman() behavior
Well, the real issue then seems to be that .roman2numeric uses an invalid regular expression:
>> grepl("^M{,3}D?C{,4}L?X{,4}V?I{,4}$", cc)
> [1] TRUE TRUE TRUE TRUE TRUE
or
>> grepl("^I{,2}$", c("II", "III", "IIII"))
> [1] TRUE TRUE FALSE
Both the TRE and the PCRE specification only allow repetition quantifiers of the
2009 Nov 17
3
gem install rails - errors MAC OSX (snow leopard)
This produced quite a mouthful of text.
I''m stuck on the error messages and wondering if I messed something
up. Any advice would be very appreciated. Thank you.
dust:~ Lex$ gem install rails
WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and
/usr/bin aren''t both writable.
WARNING: You don''t have /Users/Lex/.gem/ruby/1.8/bin in your PATH,
gem executables
2006 Sep 25
5
HTTP Parser (Regal)
Hi I was interested to see how Mongrel uses Lex/Yacc to parse the HTTP
requests using a Regal generated parser. I downloaded the source but do
not see the lex and yacc files...
2001 Mar 07
5
Remove
Hello,
I would like to remove some files which have the extension .test for
example (data1.test, data2.test ....).
Is there another solution to remove them instead of doing it one by one
?
Thanks for your help,
St?phanie Langevin
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send
2007 Oct 03
2
Please review Network Virtualization page for Wikipedia
Hi Everyone -
Here is a draft of the first of two "pages" that I will submit to Wikipedia. The first page is a general network virtualization page. From this page, I will contribute a subpage on the Crossbow projects. These two articles are the first of a number of online articles on Crossbow that I''ll be creating on behalf of the Crossbow iteam.
The article uses
2009 Jun 17
1
Predict Fanny Membership
Hello List,
My question is an elementary one. I have run a fuzzy kmeans cluster using
FANNY to group freshwater fish assemblages. I then went in the field to
validate that classification and have retrieved new assemblage data for a
new suite of streams. Therefore I would like to use Predict to determine how
well the original clustering fits the new data. However I have not figured
out a
2025 Jan 16
2
Weird and changed as.roman() behavior
>>>>> Stephanie Evert
>>>>> on Wed, 15 Jan 2025 13:18:03 +0100 writes:
> Well, the real issue then seems to be that .roman2numeric uses an invalid regular expression:
>>> grepl("^M{,3}D?C{,4}L?X{,4}V?I{,4}$", cc)
>> [1] TRUE TRUE TRUE TRUE TRUE
> or
>>> grepl("^I{,2}$", c("II",
2011 Jan 19
2
VarCorr
I have a loop that I would like to use to extract the "stddev" for
each itteration so I can average the "stddev" for all the runs. It
would be helpful to know how to extract the "stddev" for each run from
the VarCorr. Thanks
MCruns<-1000
sighatlvec<-rep(NA,MCruns)
sighatbvec<-rep(NA,MCruns)
sighatevec<-rep(NA,MCruns)
for(mc in 1:MCruns)
{
2019 Jul 18
4
Gráfico tiempos de supervivencia
Hola,
Sí, lo puedes hacer de esta forma...
#-----------------
set.seed(20)
DATOS <- data.frame (
ID = c (1:10)
, TIEMPO = sample(1:40, 10, replace=F)
, DEF = as.factor(sample(c(0,1), 10, replace=T))
)
library(ggplot2)
ggplot( data = DATOS ) +
geom_point( aes(x = TIEMPO, y = ID , shape = DEF, color = DEF), size = 5
) +
geom_segment( aes( x = 0, y = ID, xend =
2008 Jun 13
5
Installing a .msp patch
On Thursday 12 June 2008 18:03:10 wine-users-request at winehq.org wrote:
> DO NOT RUN WINE AS ROOT. ?By running Wine as root, you have damaged your
> wine install. ?This is in the FAQ.
> http://wiki.winehq.org/FAQ#head-96bebfa287b4288974de0df23351f278b0d41014
>
> You'll need to fix your ~/.wine first before you can do anything else.
>
2011 Aug 05
1
jagged array (matrices of different dimensions)
Dear all,
I am having trouble creating a "jagged array" in R. I have found no commentary on how to do it in the help files, but maybe I am misunderstanding the purpose of some of the array functions (e.g. tapply).
I am using a longitudinal dataset where each individual has a different number of time points (observations). I need to create correlation structures for each