Displaying 20 results from an estimated 32 matches for "meesters".
2017 Aug 09
2
generating cran package list matching R minor version
...hallenge is to
maintain R module files for a cluster, using easybuild.
My question is: Is there a way to derive a list of cran packages and
their version for a given version of R?
In case addressing the R-help list is addressing wrong list, any pointer
is appreciated.
Best regards,
Christian Meesters
2017 Aug 09
0
generating cran package list matching R minor version
> On Aug 9, 2017, at 5:38 AM, Christian Meesters <meesters at uni-mainz.de> wrote:
>
> Dear All,
>
> It is a common problem to update R for distributors. My challenge is to maintain R module files for a cluster, using easybuild.
>
> My question is: Is there a way to derive a list of cran packages and their version for a...
2009 Aug 24
2
robust method to obtain a correlation coeff?
Hi,
Being a R-newbie I am wondering how to calculate a correlation
coefficient (preferably with an associated p-value) for data like:
> d[,1]
[1] 25.5 25.3 25.1 NA 23.3 21.5 23.8 23.2 24.2 22.7 27.6 24.2 ...
> d[,2]
[1] 0.0 11.1 0.0 NA 0.0 10.1 10.6 9.5 0.0 57.9 0.0 0.0 ...
Apparently corr(d) from the boot-library fails with NAs in the data,
also cor.test cannot cope with a
2007 Mar 07
2
Power calculation for detecting linear trend
...-5
R<-5
sigmasq<-0.1
q<-10
Vl<-(T*R)-2
Dl<-(R*(T-1)*T*(T+1)/(12*sigmasq))*(log(1+(q/100)))^2 #Dl result is
still similar
power.1<-1-pf(qf(.95,(T*R-2),1,ncp=0),(T*R-2),1,ncp=Dl)
Thank you for any suggestions/help.
I'm using R2.4.1, on windowsXP.
Erik Meesters
[[alternative HTML version deleted]]
2011 Jul 11
2
problem with 'predict'
Hi,
I would like to tabulate the likelihood for an affection. For this, I retrieve indices of affected people and controls for my data set and proceed as follows:
flags <- c(rep(1, length(patient_indices)), rep(0, length(control_indices)))
# dataset is a data.frame and param the parameter to be analysed:
data1 <- dataset[,param][c(patient_indices, control_indices)]
fit1 <- glm(flags ~
2012 Jul 09
3
Predicted values for zero-inflated Poisson
Hi all-
I fit a zero-inflated Poisson model to model bycatch rates using an offset term for effort. I need to apply the fitted model to a datasets of varying levels of effort to predict the associated levels of bycatch. I am seeking assistance as to the correct way to code this.
Thanks in advance!
Laura
[[alternative HTML version deleted]]
2011 Dec 13
1
k-means cluster and plot labels
Hi,
For my data, I followed the example of http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R/Clustering/K-Means#Execution and got some very nice results. Despite the fact, that I want to achieve a bit more by clustering my data (stratification beyond case-control), the actual data-frame contains a column labeled "C" which holds a case-control indicator (here either "Z"
2011 Dec 16
1
kmeans and plot labels
Hi,
Thanks Sarah. Unfortunately I did not get a step further.
My question, perhaps a bit clearer, is how to display the case control status (or any other arbitrary point label) after clustering in a plot:
With a bit of pseudo code, where dataset is a data.frame, parameters are those column names where we find numerical values (no NAs) and nclasses is the desired number of classes.
fit <-
2013 Jan 14
0
Course: Introduction to zero inflated models and GLMM
...URL: www.springer.com/0-387-45967-7
2. Mixed effects models and extensions in ecology with R. (2009).
Zuur, AF, Ieno, EN, Walker, N, Saveliev, AA, and Smith, GM. Springer.
http://www.springer.com/life+sci/ecology/book/978-0-387-87457-9
3. A Beginner's Guide to R (2009).
Zuur, AF, Ieno, EN, Meesters, EHWG. Springer
http://www.springer.com/statistics/computational/book/978-0-387-93836-3
4. Zero Inflated Models and Generalized Linear Mixed Models with R. (2012) Zuur, Saveliev, Ieno.
http://www.highstat.com/book4.htm
Other books: http://www.highstat.com/books.htm
Statistical consultancy, cou...
2013 Jun 27
1
corrgram with two datasets
Hi,
I would like to display inter-parameter scatter plots like those with the corrgram package (see upper triangle here: http://www.statmethods.net/advgraphs/images/corrgram2.png ), just that I would like to plot two datasets instead of one. Say one with black and one with red dots. Or a merged dataset where an indicator column is used to assign different colors to particular dots - with still
2009 Nov 16
1
Paper on data exploration
...st author of:
1. Analysing Ecological Data (2007).
Zuur, AF, Ieno, EN and Smith, GM. Springer. 680 p.
2. Mixed effects models and extensions in ecology with R. (2009).
Zuur, AF, Ieno, EN, Walker, N, Saveliev, AA, and Smith, GM. Springer.
3. A Beginner's Guide to R (2009).
Zuur, AF, Ieno, EN, Meesters, EHWG. Springer
Statistical consultancy, courses, data analysis and software
Highland Statistics Ltd.
6 Laverock road
UK - AB41 6FN Newburgh
Email: highstat at highstat.com
URL: www.highstat.com
--
View this message in context: http://old.nabble.com/Paper-on-data-exploration-tp26382087p263820...
2008 Oct 15
2
Lattice key title color
Dear R users,
is there a way to define the color of the title for the legend in
lattice?
The help page on xyplot has a lot of details on key options just as the
new book, but no mentioning of a color attribute for the title.
Should I use ltext or is there any other way?
Best wishes,
Erik
[[alternative HTML version deleted]]
2009 Jul 20
2
Regression for loop test HELP! URGENT!
Hi everyone!
I'm new to R, and I've sent this message as a non-member, but since it's
pretty urgent, I'm sending it again now I'm on the mailing list (Thanks
Daniel for your suggestion nevertheless).
I have calculated a regression in the form of M ~ D + O + S, and I would
like to take this regression and test it with other samples, 5 sets of M, D,
O, and S at a time(I actually
2009 Aug 01
4
R book for economists
Dear Group,
I am an economics student starting with PhD work in London. As preparation I
would like to get to know R a little bit better. For Stata there are tons of
books, however, can you recommend a book for R?
I have some substantiated econometrics knowledge, so it should be more a
how-to book.
Best regards
Thiemo
---
Thiemo Fetzer, Economist
http://freigeist.devmag.net
2009 Sep 04
3
Using anova(f1, f2) to compare lmer models yields seemingly erroneous Chisq = 0, p = 1
Hello,
I am using R to analyze a large multilevel data set, using
lmer() to model my data, and using anova() to compare the fit of various
models. When I run two models, the output of each model is generated
correctly as far as I can tell (e.g. summary(f1) and summary(f2) for the
multilevel model output look perfectly reasonable), and in this case (see
below) predictor.1 explains vastly more
2009 Jul 30
1
creating subsets within lm()
Dear All,
the lm() function has the possibility to create a subset of the
possible explaining variables that you have. However, in the help
there is no example how to use this subset option. I tried the
following:
model<-lm(dependent.data$MPFD~.,data=explaining.data,subset=c(1,0,0,0,0,0,0,0,1,1,0,0))
MPFD is the dependent variable stored in the data frame
dependent.data, and all 12
2009 Sep 17
1
Dealing with heterogeneity with varComb weights
Hi,
I am trying to add multiple variance structures such as the first example
below:
vf1 <- varComb(varIdent(form = ~1|Sex), varPower())
However my code below will not work can anybody please advise me?
VFcomb<-varComb(varExp(form=~depcptwithextybf),varFixed(form=~FebNAO))
also if you have two variables with the same weights function would you
write that as:
2011 Apr 27
1
lattice wireframe with logarithmically scaled axis?
Hi,
I have some questions for the wireframe function of the lattice package. My dataset's "x-data" are sampled logarithmically and as such I would like to have a semilogarithmic 3D plot when plotting a time series. Does anyone know how to change the example in
http://addictedtor.free.fr/graphiques/sources/source_40.R
such that x or y would be logarithmically scaled?
Also, I would
2011 Jun 13
1
Filesystems for Windows
At the mailing list archives I found some questions about supporting the
file systems ntfs and exFat/Fat64. These are not supported yet, I am
wondering what the current status is? Are there any plans to add this in the
near future?
2012 Jul 15
0
NaN in hurdle model please?
...URL: www.springer.com/0-387-45967-7
2. Mixed effects models and extensions in ecology with R. (2009).
Zuur, AF, Ieno, EN, Walker, N, Saveliev, AA, and Smith, GM. Springer.
http://www.springer.com/life+sci/ecology/book/978-0-387-87457-9
3. A Beginner's Guide to R (2009).
Zuur, AF, Ieno, EN, Meesters, EHWG. Springer
http://www.springer.com/statistics/computational/book/978-0-387-93836-3
4. Zero Inflated Models and Generalized Linear Mixed Models with R. (2012) Zuur, Saveliev, Ieno.
http://www.highstat.com/book4.htm
Other books: http://www.highstat.com/books.htm
Statistical consultancy, cou...