Displaying 20 results from an estimated 1000 matches similar to: "Memory error"
2001 Feb 26
2
R ignoring quantile() in source()d file
Can anyone explain this behavior? Essentially, I've created a short file
to be read in via source() that gets some descriptive information on a
series of variables in a data frame. For each variable, I do three
things:
print('last.hc.actors')
quantile(last.hc.actors,probs=seq(0,1,0.1),na.rm=T)
stem(last.hc.actors)
where the variable name is (in this case) last.hc.actors. All that
2001 Mar 01
1
[OT] correspondence analysis w/ non-mutually-exclusive categories
Greetings, again. This is not strictly an R question, so please feel free
to ignore it if you like.
My question is about the substance of correspondence
analysis. Specifically, is it appropriate to use ca on a matrix of values
such that the columns and/or rows are not mutually exclusive? To be more
detailed:
- The standard use of ca is illustrated in the example of corresp() (from
MASS):
2003 Jun 24
2
Can't load e1071
After upgrading to 1.7.0 under debian linux, I can't get e1071 working
properly.
The first problem I had was that g++-3.0 was the standard compiler but
wasn't installed, so I installed it. e1071 then installed correctly, but I
get the following:
aperrin at perrin:~/afshome/papers/authoritarian/R$ R
R : Copyright 2003, The R Development Core Team
Version 1.7.0 (2003-04-16)
R is free
2003 May 27
2
Help! R won't start
Returning after the long weekend, I get the following:
aperrin at perrin:~/afshome/papers/microcultures/R$ R
R : Copyright 2003, The R Development Core Team
Version 1.7.0 (2003-04-16)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type `license()' or `licence()' for distribution details.
R is a collaborative
2001 Mar 01
1
How to coerce data frame elements into factors?
Greetings -
In trying to do a multiple correspondence analysis, I need to coerce a
data frame such that each of its columns will be a factor. Can someone
offer advice on how to make this happen? I've tried this:
> logic.resources.f.df<-apply(logics.resources.df, 2, factor)
but:
> is.factor(logic.resources.f.df$interests)
[1] FALSE
I've also tried individually,
>
2005 Dec 09
2
Status of PostgreSQL using DBI?
Greetings - is there any update on a PostgreSQL driver for the DBI
package? If not, what's the currently-preferred method of creating a link
from a PostgreSQL database and R?
Thanks.
----------------------------------------------------------------------
Andrew J Perrin - andrew_perrin (at) unc.edu - http://www.unc.edu/~aperrin
Assistant Professor of Sociology; Book Review Editor, _Social
2003 May 30
1
Error using glmmPQL
Can anyone shed any light on this?
> doubt.demographic.pql<-glmmPQL(random = ~ 1 | groupid/participantid,
+ fixed = r.info.doubt ~
+ realage + minority + female + education + income + scenario,
+ data = fgdata.df[coded.resource,],
+ na.action=na.omit,
+
2003 May 20
1
Extracting elements from an reStruct
Sorry if this is obvious, but my S skills aren't great and I haven't been
able to find it documented anywhere.
I want to write a new function for use with lme objects; the function will
simply calculate an ICC (aka "rho") for each level of a mixed-effects
model. What I need for this is pretty simple:
(c(var1..varn, residual)) / sum(c(var1..varn, residual))
where var1..varn
2002 Feb 14
1
Advice on using barplot
Greetings-
I'm venturing into a new (for me) area of using R: some presentation
graphics based on R data.
I'd like to compare two distributions of ordinal variables in relatively
small (N=203 and 207) subsets of an R dataset. I can get a reasonably
good picture of the distributions' differences with:
x11()
plot(table(hcd.df$auth.sum[hcd.df$datecat==1]),
2001 Jun 06
3
HLM-like analysis in R
Greetings-
I have some data on which I need to do something like a Hierarchical
Linear Model (please bear with me, I'm only learning the technique so I
don't know yet if my language is correct). Essentially I'm analyzing data
at two levels simultaneously; data are about individuals an organizations
of which they are members.
Can someone point me toward an appropriate package in R?
2004 May 17
2
"ghost" image in .eps file
Greetings-
An odd situation has developed. I use the following code to create .eps
files of two very similar graphs:
postscript(file='resources.bygt.eps', onefile=FALSE, horizontal=TRUE)
barplot(resources.bygt.matrix,
beside = TRUE,
legend.text=c('narrative','doubt'),
2001 Apr 03
2
Parse error in xtabs
Greetings-
Using R 1.2.2 under linux, I get the following:
> l.agg<-xtabs(cbind(r.logic.interests, r.logic.morality,
+ r.logic.enlightened, r.logic.capacity,
r.logic.mediate)
+ ~ grouptype,
+ data=gt)
Error in parse(file, n, text, prompt) : parse error
I know the data are structured fine, as I can use all the elements in
individual xtabs()
2001 Nov 14
1
xtable and table()
Greetings-
A relatively small request, but here goes.
I have some crosstabs, generated with table(), in R:
> table(pg.df$grouptype,pg.df$age)
0 1 2 3 4
B 1 3 6 8 3
C 1 3 4 10 7
P 0 2 9 9 8
S 2 9 4 5 16
U 0 15 15 3 0
X 0 0 0 0 0
I would like to export these in latex format using xtable(). But it
appears there's no appropriate method for
2001 Dec 09
1
plot.design()
Greetings-
I'm working through Pinheiro and Bates' _Mixed Effects Models in S and
S-Plus_ using R (1.3.1 for linux). On page 13 (okay, so I haven't got that
far :)) is:
plot.design( ergoStool)
which returns on my system:
> plot.design(ergoStool)
Error: couldn't find function "plot.design"
any ideas?
Thanks.
2003 Jun 27
1
plot() help
Please forgive my ignorance on grapics. I'm trying to make a relatively
simple plot with two line plots, same axes, by mean over a series of
dates. I can make the plot well like this:
plot(sort(tapply(first.anti.auth.sum,date,mean), partial=1), type="l",
col="yellow",ylim=c(0,2.0))
par(new=TRUE)
plot(sort(tapply(first.pro.auth.sum,date,mean), partial=1),
2002 Jan 27
5
EPS->LaTeX problem
Greetings-
I have a strange problem displaying a graph from R (1.3.1, linux) in a
LaTeX document of documentclass seminar.
I'm using graphicx to include the file:
\usepackage{graphicx}
...
\resizebox{\textwidth}{\textheight}{\includegraphics{crime.eps}}
When I do this, the entire slide (including the page number) is rotated
180 degrees. Any ideas why this happens?
The graph was created
2002 Feb 08
3
Plotting multiple columns on same graph
I'd like to produce a series of simple line graphs for my methods class
that show the three questions used on a repeated survey to make up a
particular index. The data frame is:
> efficacy.df
year complicated havesay dontcare
1 1952 71 68 63
2 1954 NA NA NA
3 1956 64 71 71
4 1958 NA NA NA
5 1960
2002 Feb 05
2
Measures of agreement
Greetings.
I've been experimenting with some algorithms for document classification
(specifically, a Naive Bayes classifier and a kNN classifier) and I would
now like to calculate some inter-rater reliability scores. I have the data
in a PostgreSQL database, such that for each document, each measure (there
are 9) has three variables: ap_(measure), nb_(measure), and
knn_(measure). ap is me
2001 Mar 02
0
[OT] correspondence analysis w/ non-mutually-exclusive ca tegories
Andy,
Take a look at Greenacre, Theory and Applications of Correspondence
Analysis. He has many example of dealing with all sorts of data.
Basically, the technique is relevant for 2-way tables -- MCA is an
extenstion. It is not clear in your example whether CA is really
appropriate -- you want to make an observation (if at all possible) fall in
one cell, treating the others layers as
2002 Jun 27
4
R won't start right
Any ideas on this?
nujoma:~> R
R : Copyright 2002, The R Development Core Team
Version 1.5.0 (2002-04-29)
...
Error: couldn't find function ".Alias"
Error: couldn't find function "attach"
[Previously saved workspace restored]
> q()
Error: couldn't find function "q"
>
Suspended
nujoma:~> kill %1
This is on a brand-new installation of R