Displaying 20 results from an estimated 3000 matches similar to: "The R Book by M. J. Crawley"
2007 Aug 02
1
boxplot hinge customization
Hello R users wiser than I -
I am trying to produce a boxplot with quantiles defined by the type 6
algorithm used
mainly by Minitab and SPSS for a comparison study. I found how to
compare the
results in tabular form using the quantile(x, type = 6) function, but am
stuck on how
to show the results in a summary boxplot form. Would someone be able
the help with
this situation?
Many thanks,
Matt
2009 Nov 11
1
AMRAtoMA
Hello R Users!
I have a question about the output of ARMAtoMA when used to calculate
the variance of
a model. I have a mixed model of the form ARMA(1,1). The actual
model takes the form:
X(t) = 0.75X(t-12) + a(t) - 0.4a(t-1)
Given that gamma(0) takes the form [(1 + theta^2 -
2*theta*phi)/(1-phi^2)]*sigma(a), I would
expect a process variance of 4.02*sigma(a) when I substitute 0.75 for
phi and
2007 Apr 11
1
Boxplot with quartiles generated from different algorithms
R users:
I am trying to replicate the boxplot output I achieve with Minitab in R.
I realize that R gives the user many more options on the algorithm used
to
calculate the IQR than Minitab, so I concentrated on type=6 when using
the quantile() function in R. The problem I am having is setting the
upper and
lower limit of the whisker based on the nearest actual data that should
be included.
If
2007 Oct 22
4
Bar plot with error bars
Apologies if this has been asked before. I am having trouble
understanding the R mailing list never mind R!
I am relatively new to R having migrated from Minitab and SPSS. I
have managed to do some more complicated statistics such as
hierarchical partitioning of variance on an 80,000 record dataset but
have to admit that drawing a simple bar plot I could do by hand is
proving extremely
2008 Jun 11
2
model simplification using Crawley as a guide
Hello,
I have consciously avoided using step() for model simplification in favour
of manually updating the model by removing non-significant terms one at a
time. I'm using The R Book by M.J. Crawley as a guide. It comes as no
surprise that my analysis does proceed as smoothly as does Crawley's and
being a beginner, I'm struggling with what to do next.
I have a model:
lm(y~A * B *
2002 Dec 02
2
Crawley's book on S-Plus and one strangeness
Hi,
I have got to my hands an excellent book by Michael J. Crawley
``Statistical Computing: An Introduction to Data Analysis using
S-Plus'' (John Wiley & Sons, Ltd, ISBN 0-471-56040-5). Its beauty
for me is in the fact, that it is more of ``An Introduction to
Data Analysis'' than ``using S-Plus'', but I guess that it may be
of interest for many others.
Most of the
2006 Apr 04
1
Problem with Crawley book example
Hi,
I try to run the example of Crawley's Book on the page 661, but it fail, look
> repmeasures <-
read.table("../Packages/Crawley/data/repmeasures.txt",header=T)
> attach(repmeasures)
> rep <- as.factor(rep)
> library(nlme)
> model <- lme(height~seed,random=~time|rep/seed)
Erro em lme.formula(height ~ seed, random = ~time | rep/seed) :
iteration limit
2003 Oct 14
1
[OFF] Dataset for extra Crawley Chapter
Hi,
anybody have the dataset used in Gamma Errors chapter of the Crawley's books
(An Introduction to Data Analysis using S-Plus).
specifically the functionalresponse and the Density datasets.
Thanks
Ronaldo
--
For every problem there is one solution which is simple, neat, and wrong.
-- H. L. Mencken
--
|> // | \\ [***********************************]
| ( ? ? ) [Ronaldo Reis
2011 Jun 28
2
coxph() - unexpected result using Crawley's seedlings data (The R Book)
Hi,
I ran the example on pp. 799-800 from Machael Crawley's "The R Book" using package survival v. 2.36-5, R 2.13.0 and RStudio 0.94.83. The model is a Cox's Proportional Hazards model. The result was quite different compared to the R Book. I have compared my code to the code in the book but can not find any differences in the function call. My results are attached as well as a
2004 Oct 28
2
Running R on a grid engine
Dear Group,
I am using DEAL package for modeling signal
transduction nets. This process is deal slow on a
SunFire server with 8 gigs ram.
we have a grid that can process much faster that one
individual server.
However, to start the process in Grid, I have to give
a command or submit a batch process.
Is there any way, I can run R in bach process.
I tried the following:
R CMD |
2012 Sep 19
2
write.table: strange output has been produced
Good afternoon all -
While making a steady progress in learning R after Matlab I encountered
a problem which seems to require some extra help to move over.
Basically I want to merge a data from biological statistical dataset
with annotation data extracted from another dataset using an 'id'
crossreference and write it to report file. The first part goes
absolutely fine, I have merged both
2010 May 11
1
comparing and combing files
Hello,
I have two tab-delimited files which I would like to combine.
In the first one I have gene IDs (Unique) on column 1 and than various
experimental results from microarray analysis (see attached files list1 )
the second arrays have the same genes IDs (more and in a different order,
some are double) (see attached files list2 )
What I would like to do is to search in the second list for gene
2007 Feb 15
4
R book advice
I'm looking for a book for someone completely ignorant of statistics
who wishes to learn both statistics and R. I've found three
possibilities, one by Verzani ("Using R for Introductory Statistics"),
one by Crawley ("Statistics: An Introduction using R"), and one by
Dalgaard ("Introductory Statistics with R"). Do these books have
different emphases,
2013 Jun 12
2
Functions within functions - environments
Dear list,
I have a problem with nested functions and I don't manage to get it
solved. I know I should be looking in environments, and I have tried a
lot, but it keeps on erroring.
An easy version of the problem is as follows:
innerfunction<-function()
{
print(paste(a, " from inner function"))
print(paste(b, " from inner function"))
setwd(wd)
}
From THE R BOOK -> Warning: In eval(expr, envir, enclos) : non-integer #successes in a binomial glm!
2010 Mar 30
3
From THE R BOOK -> Warning: In eval(expr, envir, enclos) : non-integer #successes in a binomial glm!
Dear friends,
I am testing glm as at page 514/515 of THE R BOOK by M.Crawley, that is
on proportion data.
I use glm(y~x1+,family=binomial)
y is a proportion in (0,1), and x is a real number.
I get the error:
In eval(expr, envir, enclos) : non-integer #successes in a binomial glm!
But that is exactly what was suggested in the book, where there is no
mention of a similar warning. Where am I
2006 Oct 17
4
Book recommendation for newbie to stats and R?
I'm trying to learn statistics and R at the same time. I have an
undergraduate science degree and one year of calculus (30 years ago),
but never took a stats course. I hope to take some stats courses in the
next year, but thought I would start to see how much I could teach
myself.
I work for an organization that analyses behavior change communication
programs regarding HIV/AIDS and
2007 Jun 12
5
R Book Advice Needed
I am new to using R and would appreciate some advice on
which books to start with to get up to speed on using R.
My Background:
1-C# programmer.
2-Programmed directly using IMSL (Now Visual Numerics).
3- Used in past SPSS and Statistica.
I put together a list but would like to pick the "best of"
and avoid redundancy.
Any suggestions on these books would be helpful (i.e. too much
2010 Apr 15
1
can't find "daphnia.txt" and others while working through Crawley's R-Book
I have a feeling that this is an embarassingly simple fix, but I've been at it for most of the morning and can't get things figured out.
I'm trying to work through some examples in Crawley's "The R Book". I have installed packages and libraries as described in the book, but when I try, for example:
data<-read.table("c:\\temp\\daphnia.txt", header=T)
2007 May 03
2
Truncating trailing digits
Hello,
I am relatively new to R and have a rudimentary question, I think. How
does one
truncate the number of digits displayed after the decimal when viewing
the results
of analyses?
My apologies if this question has been answered previously, I was not
able to find
references very easily.
Thank you in advance,
Matt
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2009 May 27
1
R Books listing on R-Project
I was wondering what the criteria were for including books on the Books
Related to R page <http://www.r-project.org/doc/bib/R-books.html>. (There is
no maintainer listed on this page.)
In particular, I was wondering why the following two books are not listed:
* Andrew Gelman, Jennifer Hill, *Data Analysis Using Regression and
Multilevel/Hierarchical Models*. (CRAN package 'arm')
*