Displaying 20 results from an estimated 10000 matches similar to: "cut with infinite values -> NA"
2002 Jun 20
0
[R] cut with infinite values -> NA (PR#1694)
You are correct in your expectations. This is a bug: the C code does not
cover the cases +/-Inf (because it uses R_FINITE to exclude them).
I'll fix it in R-patched: filing with R-bugs for the record.
On 20 Jun 2002, Markus [ISO-8859-1] Jäntti wrote:
> I am doing work on changes in establishment sizes and came across
> behavior that is quite understandable and easily worked around
2002 May 20
1
suggestion for example for base:naresid
Dear list:
since it took me a little while to figure out how to make use of naresid, I thought that
the below R code might be useful as an example on the help page.
Regards,
Markus
# generate some data
x1 <- runif(20)
y <- 10 + 5*x1 + rnorm(20)
summary(lm.0 <- lm(y ~ x1))
# append some NA's to y
y <- c(y, rep(NA, 5))
# generate some further x1s
x1 <- c(x1, runif(5))
#
2001 Aug 29
1
suggestion for example for base:naresid
Dear list:
since it took me a little while to figure out how to make use of naresid, I thought that
the below R code might be useful as an example on the help page.
Regards,
Markus
# generate some data
x1 <- runif(20)
y <- 10 + 5*x1 + rnorm(20)
summary(lm.0 <- lm(y ~ x1))
# append some NA's to y
y <- c(y, rep(NA, 5))
# generate some further x1s
x1 <- c(x1, runif(5))
#
2002 Jul 17
1
editing Sweave files in xemacs with ess (noweb), auctex and reftex
I am having some trouble getting reftex, in particular the bibtex
related features, to work properly in xemacs when editing text in Sweave
files. I have added
(defun Rnw-mode ()
(noweb-mode)
(if (fboundp 'R-mode)
(setq noweb-default-code-mode 'R-mode)))
(add-to-list 'auto-mode-alist '("\\.Rnw\\'" . Rnw-mode))
(add-to-list 'auto-mode-alist
2005 Feb 15
3
using poly in a linear regression in the presence of NA f ails (despite subsetting them out)
This smells like a bug to me. The error is triggered by the line:
variables <- eval(predvars, data, env)
inside model.frame.default(). At that point, na.action has not been
applied, so poly() ended being called on data that still contains missing
values. The qr() that issued the error is for generating the orthogonal
basis when evaluating poly(), not for fitting the linear model itself.
2005 Feb 15
3
using poly in a linear regression in the presence of NA f ails (despite subsetting them out)
This smells like a bug to me. The error is triggered by the line:
variables <- eval(predvars, data, env)
inside model.frame.default(). At that point, na.action has not been
applied, so poly() ended being called on data that still contains missing
values. The qr() that issued the error is for generating the orthogonal
basis when evaluating poly(), not for fitting the linear model itself.
2005 Feb 14
0
using poly in a linear regression in the presence of NA fails (despite subsetting them out)
I ran into a to me surprising result on running lm with an orthogonal
polynomial among the predictors.
The lm command resulted in
Error in qr(X) : NA/NaN/Inf in foreign function call (arg 1)
Error during wrapup:
despite my using a "subset" in the call to get rid of NA's.
poly is apparently evaluated before any NA's are subsetted out
of the data.
Example code (attached to
2001 May 18
1
NAs in chron objects
Dear All:
I am having some trouble with date variables when NAs are present. The
following example illustrates (see below for output of version):
> library(chron)
> minor.test <- c( "NA", "NA", "1988-02-08",
+ "1988-02-08", "NA", "1987-11-23", "1988-09-03", "1991-10-15",
+
2005 Nov 17
1
anova.gls from nlme on multiple arguments within a function fails
Dear All --
I am trying to use within a little table producing code an anova
comparison of two gls fitted objects, contained in a list of such
object, obtained using nlme function gls.
The anova procedure fails to locate the second of the objects.
The following code, borrowed from the help page of anova.gls,
exemplifies:
--------------- start example code ---------------
library(nlme)
##
1999 Nov 25
0
tapply and weighted.mean
I am trying to use tapply to estimate the average wage in a set of
Year*Education cells using sampling weights, as well as some other
other statistics using the weights). I am having trouble trying
to figure out how to pass the weights to the function, using:
> tapply(wage,list(Educc,Year),weighted.mean, w=weight)
whieh produces warnings of the type:
3: longer object length
is not a
1999 Sep 02
1
unresolved symbols in growth and repeated libraries
I am having trouble using Jim Lindsey's libraries because of unresolved
symbols. I am currently using R 0.65.0, but had this problem in earlier
releases as well. I have a RedHat 6.0 Linux on i386 and use egcs
(upgraded to that distributed with rawhide, after first failures with
the libraries):
egcs-g77-1.1.2-19
egcs-1.1.2-19
Installation of the libraries works but on loading
>
2000 Jun 16
0
glm under R versions 1.0.1 and 1.1.0
I have fitted a number of models with receipt of social assictance
(toim1) during a year (values 0 or 1) with a number of covariates.
The data include sampling weights which I use in the models. Using the
exact same data, glm() under 1.0.1 and 1.1.0 give different results in
many (but not all) of the models. I have re-installed 1.0.1 to check
this and I found now mention in the NEWS file that
1998 May 06
1
R-beta: adjusting y-axis scale with multiple lines in plot
Hello --
I am plotting multiple densities in a single plot. If the max of a new
density (added with 'lines()') is sufficiently larger than that of the
one first plotted (using 'plot()'), the new density is cut or
trucated off of the figure. Is there a simple way of adjusting the
yscale after all lines have been added?
Or is the procedure to be used to first estimate all
2002 Feb 06
4
Weighted median
Is there a weighted median function out there similar to weighted.mean()
but for medians? If not, I'll try implement or port it myself.
The need for a weighted median came from the following optimization
problem:
x* = arg_x min (a|x| + sum_{k=1}^n |x - b_k|)
where
a : is a *positive* real scalar
x : is a real scalar
n : is an integer
b_k: are negative and positive scalars
2003 Feb 12
2
rbind.data.frame: character comverted to factor
Dear All,
on rbind:ing together a number of data.frames, I found that
character variables are converted into factors. Since this
occurred for a data identifier, it was a little inconvenient
and, to me, unexpected. (The help page explains the
general procedure used. I also found that on forming
a data frame, character variables are converted to factors.
The help page on read.table has the
2006 Apr 06
4
weighted kernel density estimate
Dear R-users,
I intend to do a spatial analysis on the genetic structuring within a
population. For this I had thought to prepare a kernel density estimate
map showing the spatial distribution of individuals, while incorporating
the genetic distances among individuals. I have a dataset of locations
of N unique individuals (XY-coordinates) and an NxN matrix with the
genetic distances given as a
1999 Sep 01
1
Using R-0.65.0 under ESS on Unix
There is a bug in the command-line handling of 0.65.0 under Unix that
may affect some users of R-inferior-mode under ESS, as that sets
--no-readline as the first argument, and any arguments after that are
ignored.
The fix is simple: delete line 448 of src/unix/sys-common.c (`break;')
and re-compile.
The most used arguments are (I'm told) --vsize and --nsize. I find it more
convenient to
2006 Oct 11
2
pinning R packages to unstable?
Dear Debian R users,
This is more of an apt question rather than R. I have a testing Debian
system, but would like to use the unstable packages for R, *without* using
the -t flag in apt-get. I think this is done by using a 'pin' rule in
/etc/apt/apt.conf, but don't understand how this should be done. Can
somebody provide an example please?
Cheers,
--
Seb
2007 Jun 13
2
Fitted Value Pareto Distribution
I would like to fit a Pareto Distribution and I am using the following codes.
I thought the fitted (fit1) should be the fitted value for the data, is it
correct? As the result of the "fitted" turns out to be a single value for
all.
fit=vglm(ycf1 ~ 1, pareto1(location=alpha), trace=TRUE, crit="c")
fitted(fit)
The result is
fitted(fit)
[,1]
[1,] 0.07752694
2005 Feb 05
2
Std Err on Concentration measures
Hi,
I'm using the ineq package to calculate some concentration measures (Gini, Herfindal, ...) and I was wondering if there's around also a function to calculate standard error on these measures. If not, is anybody aware of where I can find a reference on this point?
Thanks.
--
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Angelo Secchi PGP Key ID:EA280337