Displaying 20 results from an estimated 3000 matches similar to: "Logistic geographical weighted regression"
2008 Mar 14
1
Forward Selection with regsubsets
Hi,
I would like to perform a forward selection procedure on a data set
with 6 observations and 10 predictors. I tried to run it with
regsubsets (I set nvmax=number of observations) but I keep getting
these warning messages:
Warning messages:
1: 5 linear dependencies found in: leaps.setup(x, y, wt = weights,
nbest = nbest, nvmax = nvmax,
2: nvmax reduced to 5 in: leaps.setup(x, y, wt =
2007 Jun 06
3
list
hello,
I wanna know how to create a list of list if it's possible and if it isn't possible how to do without.
thanks.
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[[alternative HTML version deleted]]
2009 Jan 13
1
Bar plot between two different liniar models
Hello
I have a problem that i ant make a Bar plot like the one i have tried to
illustrate below (made in paint);
http://www.nabble.com/file/p21437080/LG5%2Bgraf%2Bredigeret.jpg
http://www.nabble.com/file/p21437080/LG5%2Bgraf%2Bredigeret.JPG
LG5+graf+redigeret.JPG
Where each line represents a model;
model1 = 0.58*x+12.65
model2 = 1.16*x+12.65
But i only want the bars and with y-values above
2010 Aug 24
1
save() object w/o all of the loaded environment
I have two packages, one that does the actual work (SC) and the other
a Tcl/Tk UI (SCUI) that invokes methods within the former. Within the
SCUI's invocation method, I save an object returned from SC, the
results of a long-running method.
Now the object is completely described by the SC package. Unfortunately,
any attempt to load the object (in a fresh R session) fails as below.
R>
2010 Nov 20
3
how to store package options over sessions?
Hi,
I posted this a week ago on r-help but did not get an answer. So I hope that someone here can help me:
I want to define some options for my package the user may change.
It would be convenient if the changes could be saved when terminating
an R session and recovered automatically on the next package load.
Is that possible and if yes, is the standard way to implement this?
Thanks,
Mark
2007 Jan 21
1
Can we do GLM on 2GB data set with R?
We are wanting to use R instead of/in addition to our existing stats
package because of it's huge assortment of stat functions. But, we
routinely need to fit GLM models to files that are approximately 2-4GB
(as SQL tables, un-indexed, w/tinyint-sized fields except for the
response & weight variables). Is this feasible, does anybody know,
given sufficient hardware, using R? It appears to
2010 Nov 05
3
table with values as dots in increasing sizes
I was just thinking of a way to present data and if it is possible in R.
I have a data frame that looks as follows (this is just mockup data).
df
location,"species1","species2","species3","species4","species5"
"loc1",0.44,0.28,0.37,-0.24,0.41
"loc2",0.54,0.62,0.34,0.52,0.71
"loc3",-0.33,0.75,-0.34,0.48,0.61
location
2005 Apr 11
1
extracting correlations from nlme
Hi,
I would like to know how (if) I can extract some of the information from
the summary of my nlme.
at present, I get a summary looking something like this:
> summary(fit.nlme)
Nonlinear mixed-effects model fit by maximum likelihood
Model: MLKYLD ~ W4(DIM, logA, B, C)
Data: ADHIS.x0
AIC BIC logLik
265314 265401.6 -132647
Random effects:
Formula: list(logA ~ 1 , B ~
2006 May 15
2
New contributed document available on CRAN
R Community:
In case you haven't seen it, I have written a manuscript
called "The R Guide" that is available in the Contributed
Documents section on CRAN. It is about 50 pages in length and
it is written for the beginning R user. I use the guide in my
undergraduate probability and math stat sequence, but it is
pretty accessible for anyone with a basic understanding of
statistics.
2000 Dec 10
1
basic plot() question
Dear all,
I try to plot a logstic regression model as follows:
Valkror<- read.table("Valkror.txt", header=T)
np.bark<- glm(Npinc~bark, family=binomial, data=Valkror)
plot.formula(np.bark$fitted.values~ Valkror$bark)
The above looks nice but I want to connect the points with a line so I try:
plot.formula(np.bark$fitted.values~ Valkror$bark, type="b")
but it gives a
2005 Apr 27
4
Density curve over a histogram
Dear All
I would like to draw a picture with the density curve of a normal
distribution over a histogram of a set of random numbers extracted
from the same normal distribution. Is that possible?
Thanks in advance,
Paul
2006 Aug 22
2
new version of "The R Guide" available on CRAN
Hello,
Version 2.2 of "The R Guide" is available for download in
the Contributed Documents section on CRAN. "The R Guide"
is written for the beginning R user. I use the guide in my
undergraduate probability and math stat sequence, but anyone
with a basic understanding of statistics (who wants to learn
R) should find it useful.
This updated version includes sections on
2006 Aug 01
1
plot() with TukeyHSD
Hello,
When plotting the results of a TukeyHSD multiple comparisons
procedure with an ANOVA (lm) object, an extra line appears
in the confidence intervals that contain 0. For example (this
is straight from the TukeyHSD helpfile):
> summary(fm1 <- aov(breaks ~ wool + tension, data = warpbreaks))
> TukeyHSD(fm1, "tension", ordered = TRUE)
> plot(TukeyHSD(fm1,
2013 Jan 10
2
transparency in segments()
Dear all,
i would like to plot each value from my datasets as segment with defined
transparency
However, I didnt find out how to set the transparency.
definition by "col=" in par() or segments() doesnt seem to work
any suggestions?
Thanks in advance.
Kind regards,
Robert Pazur
example code:
xx2 <-read.table("http://www.scandinavia.sk/data/R/0_05.csv", sep=";",
2012 Sep 14
1
swap hist() colours
Hi,
i created a set of graphs and want to find out how to swap the bar colours
(from white to black) and set it to be default for all graph that i will
produce (f.e. for different number of columns). some sugggestions?
thanks in advance.
here is an example:
##############################
a <-read.table("http://www.scandinavia.sk/data/R/kotlina1.csv", sep=";",
header=T)
2005 Apr 28
6
shading in line plots
Hello,
I cannot figure out how to shade between two lines in a plot. For
example, if I am trying to plot a confidence envelope and I would like to
shade the interior of the envelope grey. Is this possible in R?
Thanks in advance.
Heather Lynch
2007 Apr 26
3
Reduced Error Logistic Regression, and R?
This news item in a data mining newsletter makes various claims for a technique called "Reduced Error Logistic Regression": http://www.kdnuggets.com/news/2007/n08/12i.html
In brief, are these (ambitious) claims justified and if so, has this technique been implemented in R (or does anyone have any plans to do so)?
Tim C
2005 May 27
1
logistic regression
Hi
I am working on corpora of automatically recognized utterances, looking
for features that predict error in the hypothesis the recognizer is
proposing.
I am using the glm functions to do logistic regression. I do this type
of thing:
* logistic.model = glm(formula = similarity ~., family = binomial,
data = data)
and end up with a model:
> summary(logistic.model)
Call:
2009 Apr 09
1
Does R support [:punct:] in regexps?
Hello does R support [:punct:] in regular expressions? I am trying to
strip all regular expressions for a vector of strings.
> x <- c("yoda-yoda","billy!")
> gsub("/[:punct:]/","",x)
[1] "yoda-yoda" "billy!"
Thanks
Dan
--
**************************************************************
Daniel Brewer, Ph.D.
Institute of Cancer
2009 Feb 13
6
Over 400 smbd pid's?
Over the past 2 days, my smbd processes are multiplying worse than
rabbits. At least with rabbits it's easy to tell why you wind up
with so many...
Here's the setup:
Samba version 3.2.8-0.24 installed via rpm on a FC6 box with 2 nics,
both on the same subnet. The samba server acts as a PDC in a mixed
environment but mostly windows pc's running xp. It is used mostly
for file