Displaying 20 results from an estimated 3000 matches similar to: "How to coerce data frame elements into factors?"
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):
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 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
2001 Feb 25
0
Options to plot.mca ?
Greetings. I'm using plot.mca (from MASS) to construct some correspondence
analyses of data drawn from focus-group transcripts. My question is simple
albeit rather open-ended: I'm wondering what options there might be to
plot.mca for tailoring the plots to my needs. The documentation to the
function is somewhat sparse.
Thanks-
Andy Perrin
2001 Mar 04
1
diagonal line through plot when using pictex()
Greetings-
I've got some plots I'd like to include in a LaTeX document; specifically,
I'd like to include them via pictex() so I can edit some of the
particulars directly. However, an odd problem is coming up: a diagonal
line is drawn from bottom-left to upper-right when using pictex(). This
does not happen using X11() or postscript() with the same series of
commands.
Any ideas why
2001 Mar 09
1
rotated and/or greek mtext in pictex()?
Greetings-
I'm aware that there's no documentation for pictex available easily (that
is, without purchasing it). I'm wondering if someone can help me with a
simple task. When generating a plot using pictex() from R, one of the
commands I use is
mtext("Dimension 2: L=xxxx", side=2, line=3)
when using X11(), this appears vertically along the Y axis; when using
pictex(), it
2001 Mar 05
2
Problems with installation on Debian
Hello-
Tired of the crashes I was experiencing with r 1.2.1 on Windows ME, I
downloaded the r-1.2.1.tgz under my Debian Linux box. I untared, unzipped
and then I ./configure and make as specified i the FAQ.
But something went wrong...I had version 0.90 per-installed, as it comes
with the normal Debian distribution and now, whenever I run R, the old
version is the one that executed.
Can
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'),
1999 Jan 27
0
Encrypted passwords really necessary for PDC ?
I've attached a perl script that I wrote to build smbpasswd from
/etc/passwd. Please note that this writes a samba-2.0 format smbpasswd
file.
This script will:
# - create accounts that exist in /etc/passwd and not in smbpasswd
# - remove accounts that exist in smbpasswd and not in /etc/passwd
# - preserve existing password, flags and LCT fields in smbpasswd
# - sets new account passwords to
1999 Feb 02
1
Limits on smbclient -M?
Greetings-
We use smbclient -M to send a Message of the Day to clients every once in
a while. The clients are NT4 (SP3), and the server is Samba
1.9.19-prealpha. However, the same problem appears with version 2.0.0.
The issue is: once the file to be sent exceeds approximately 675 bytes
(smbclient reports sending 975 bytes, presumably including some overhead),
the message turns up blank on the
2007 Mar 08
2
Memory error
Greetings-
Running R 2.4.0 under Debian Linux, I am getting a memory error trying to
read a very large file:
> library(foreign)
> oldgrades.df <- read.spss('Individual grades with AI (Nov 7 2006).sav',to.data.frame=TRUE)
Error: cannot allocate vector of size 10826 Kb
This file is, granted, quite large:
aperrin at perrin:/data0/grading$ ls -l
total 630304
-r-xr-xr-x 1 aperrin
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
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
2010 Sep 01
3
Dovecot creating aditional folders?
Hi guys.
My conf:
# 1.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-23-server x86_64 Ubuntu 10.04.1 LTS reiserfs
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap imaps pop3 pop3s
ssl_cert_file: /etc/ssl/mail/dovecot.crt
ssl_key_file: /etc/ssl/mail/dovecot.key
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
1998 Jul 29
2
Strange problem with icons!
Check out these MSKB articles. They describe how shortcuts are
resolved. In particular, the last one describes the process required to
"fix" this behaviour.
I had a LOT of trouble when I first set up my LAN because people had a
nasty habit of sharing drive C (even I used to do this until I
discovered that this is a Bad Idea). The main problem is that the
shortcut includes the UNC
2003 Aug 06
1
adddriver rpc command generates segmentation fault
Hi,
I'm trying to add a printer driver to samba 2.2.7, part of the RedHat 9
distro. I have all the associated files under print$/W32X86 (I verified
that they were where I thought they were from samba's POV by looking via
smbclient). Below is the output from a getdriver command issued to a W2K
PDC to get the names of all the required files for the particular printer:
[Windows NT x86]
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,
+
2011 May 12
1
problem with mediation
Hello!
I have problem with mediation analysis. I can do it with function
mediate, when I have one mediator. But how I can do it if I have one
independent variable and one dependent variable but 4 mediators? I
have try function mediations, but it dosen't work. If I use mediate 4
times, each for every mediator, is it same? I want to know what is
total mediate effect for 4 mediators.
t.Mete