Displaying 20 results from an estimated 5000 matches similar to: "importing a list"
2012 Oct 01
2
installing a package from Archive
Dear all,
I'm trying to install in R the package blme that has been removed from R
cran but it is still in the Archive:
http://cran.r-project.org/src/contrib/Archive/blme/
I have a Mac OSX and I have been trying with the following command from
the Shell:
R CMD INSTALL --build
http://cran.r-project.org/src/contrib/Archive/blme/blme_0.01-4.tar.gz
getting the following answer:
invalid
2008 Dec 20
2
Problems installing lme4 on Ubuntu
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While I'm not an R expert, I have used R on Windows XP. Now I've moved
to Ubuntu (Intrepid), and I'm trying to configure R to work with the
Gelman and Hill _Data Analysis Using Regression and
Multilevel/Hierarchical Models_. So far, it's not working.
I start by following the instructions for installing arm and BRugs at
2011 Oct 04
2
adding a dummy variable...
Hi all,
I have a dataset of individuals where the variable ID corresponds to the
identification of the household where the individual lives. rel.head stands
for the relationship with the household head. so rel.head=1 is the household
head, rel.head=2 is the spouse, rel.head=3 is the children.
Here is an example to see how it looks like:
df<-data.frame(ID=c("17100",
2006 May 20
5
Can lmer() fit a multilevel model embedded in a regression?
I would like to fit a hierarchical regression model from Witte et al.
(1994; see reference below). It's a logistic regression of a health
outcome on quntities of food intake; the linear predictor has the form,
X*beta + W*gamma,
where X is a matrix of consumption of 82 foods (i.e., the rows of X
represent people in the study, the columns represent different foods,
and X_ij is the amount of
2006 May 01
3
pulling items out of a lm() call
I want to write a function to standardize regression predictors, which
will require me to do some character-string manipulation to parse the
variables in a call to lm() or glm().
For example, consider the call
lm (y ~ female + I(age^2) + female:black + (age + education)*female).
I want to be able to parse this to pick out the input variables
("female", "age",
2006 Jan 10
2
lmer(): nested and non-nested factors in logistic regression
Thanks to some help by Doug Bates (and the updated version of the Matrix
package), I've refined my question about fitting nested and non-nested
factors in lmer(). I can get it to work in linear regression but it
crashes in logistic regression. Here's my example:
# set up the predictors
n.age <- 4
n.edu <- 4
n.rep <- 100
n.state <- 50
n <- n.age*n.edu*n.rep
age.id
2002 Jul 25
1
R: High CPU utilization with samba2.2.5 on HPUX 11.00
Note that the problem arises only by scanning subdirectories with a large number of files ( 3.000 files and more ).
-----Messaggio originale-----
Da: Usai, Maria Grazia
Inviato: gioved? 25 luglio 2002 11.11
A: samba@lists.samba.org
Oggetto: [Samba] High CPU utilization with samba2.2.5 on HPUX 11.00
Hello, I need some help for a strange problem.
I have an HP L2000 server ( 2 CPU and 2 GB RAM
2006 May 02
2
evaluation of expressions
Hi, all. I'm trying to automate some regression operations in R but am
confused about how to evaluate expressoins that are expressed as
character strings. For example:
y <- ifelse (rnorm(10)>0, 1, 0)
sex <- rnorm(10)
age <- rnorm(10)
test <- as.data.frame (cbind (y, sex, age))
# this works fine:
glm (y ~ sex + I(age^2), data=test, family=binomial(link="logit"),
2007 Feb 11
2
problem with Matrix package
I decided to update my packages and then had a problem with loading the
Matrix package
http://cran.at.r-project.org/bin/windows/contrib/2.4/Matrix_0.9975-9.zip
This is what happened when I tried to load it in:
> library("Matrix")
Error in importIntoEnv(impenv, impnames, ns, impvars) :
object 'Logic' is not exported by 'namespace:methods'
Error:
2006 Feb 01
1
student-t regression in R?
Is there a quick way to fit student-t regressions (that is, a regression
with t-distributed error, ideally with the degrees-of-freedom parameter
estimated from the data)? I can do it easily enough in Bugs, or I can
program the log-likelihood in R and optimize using optim(), but an R
version (if it's already been written by somebody) would be convenient,
especially for teaching purposes.
2007 Dec 03
1
difficulties getting coef() to work in some lmer() calls
I'm working with Andrew Gelman on a book project and we're having some
difficulties getting coef() to work in some lmer() calls.
Some versions of the model work and some do not. For example, this works
(in that we can run the model and do coef() from the output):
R2 <- lmer(y2 ~ factor(z.inc) + z.st.inc.full + z.st.rel.full + (1 + factor(
z.inc) | st.num),
2006 Jan 10
1
another question about lmer, this time involving coef()
I'm having another problem with lmer(), this time something simpler (I
think) involving the coef() function for a model with varying
coefficients. Here's the R code. It's a simple model with 2
observations per group and 10 groups:
# set up the predictors
n.groups <- 10
n.reps <- 2
n <- n.groups*n.reps
group.id <- rep (1:n.groups, each=n.reps)
# simulate the varying
2006 May 09
3
Using DBI and RMySQL
Dear All,
I am having a bit of problem using the DBI and RMySQL
package. I have already installed DBI but now I want
to connect to MySQL. So how do I do it. The CRAN
package repository does not have RMySQL windows binary
to install from?
Regards,
Indrajit Sen Gupta
Business Analyst
Mu Sigma Business Solutions Pvt Ltd
#21/1-1, Nawab Towers
Cunningham Road
Bangalore 560 052, India
Tel: +91 80
2006 Feb 10
1
mcmcsamp shortening variable names; how can i turn this feature off?
I have written a function called mcsamp() that is a wrapper that runs
mcmcsamp() and automatically monitors convergence and structures the
inferences into vectors and arrays as appropriate.
But I have run into a very little problem, which is that mcmcsamp()
shortens the variable names. For example:
> set.seed (1)
> group <- rep (1:5,10)
> a <- rnorm (5,-3,3)
> y <-
2006 Jan 28
1
yet another lmer question
I've been trying to keep track with lmer, and now I have a couple of
questions with the latest version of Matrix (0.995-4). I fit 2 very
similar models, and the results are severely rounded in one case and
rounded not at all in the other.
> y <- 1:10
> group <- rep (c(1,2), c(5,5))
> M1 <- lmer (y ~ 1 + (1 | group))
> coef(M1)
$group
(Intercept)
1 3.1
2
2006 Jan 08
1
lmer with nested/nonnested groupings?
I'm trying to figure out how to use lmer to fit models with factors that
have some nesting and some non-nested groupings. For example, in this
paper:
http://www.stat.columbia.edu/~gelman/research/published/parkgelmanbafumi.pdf
we have a logistic regression of survey respondents' political
preferences (1=Republican, 0=Democrat), regressing on sex, ethnicity,
state (51 states within 5
2006 May 09
1
trying to use standard notation
Hi, all. In setting up my package for post-processing regression
models, I am trying to use standard notation as much as possible: thus,
I use coef() to access estimated coefficients. I wrote a function
called se.coef() to grab standard errors, and se.fixef() and se.ranef()
to grab se's from coefficients estimated from lmer().
I also need a function to access sigma-hat (the residual sd
2006 May 11
2
R more Unix-like?
Is there a way to stream data into R so that it can be used in a
command pipe?
Most Unix commands read data via standard input and read the script
from the command line. For example:
$ seq 1 10 | sed -e 's/^/foo /'
$ seq 1 10 | awk '{print "foo " $1}'
$ seq 1 10 | perl -lane 'print "foo $F[0]"'
In contrast, R seems to read the script
2006 May 12
6
text plots?
Is there a way to do text plots in R?
I'd like to do some simple XY plots in R with the output in text
(ascii). For example, with gnuplot I can do the following:
echo 'set terminal dumb ; plot sin(x)' | gnuplot
To generate a simple sin wave. Since I connect to a remote Linux
machine using SSH, being able to generate a rough idea of what a plot
will look like in text would be
2006 May 04
3
SQL like manipulations on data frames
Is there a cheat-sheet anywhere that describes how to do SQL-like
manipulations on a data frame?
My knowledge of R is rather limited. But from my experience it seems
as though one can think of data frames as being similar to tables in
a database: there are rows, columns, and values. Also, one can
perform similar manipulations on a data frame as one can on a table.
For example: