Displaying 20 results from an estimated 1000 matches similar to: "Environment problems"
2006 Jun 08
2
Plotting female and male signs
Dear R-users,
Just like other users (as seen from previous posts on the list), I would
like to use female and male signs in plots. I found B. Ripley's post
about using Unicode characters. However, it doesn't works for me.
> text(locator(1),"\u2640") produces the following error:
Error: invalid \uxxxx sequence
But I can specify other Unicode characters as long I
2003 Aug 20
1
Filled triangles in lattice graphics?
Dear R users,
I can get a filled triangle pointing upwards by specifying pch=17 in
xyplot or lpoints, but how do I get a filled triangle that points downwards?
In the standard plot function it's possible to use
plot(x,y,pch=25,bg="black"), but bg= doesn't seem to work with lattice
and lpoints.
Thanks,
Hans Gardfjell
Ecology and Environmental Science
Ume? University, Sweden
2002 Jul 29
2
Bug or feature in xyplot?
Hi,
Can someone of you tell me why these two simple examples works as
"expected",
plot(c(1,1,2,2)~c(1,2,1,2),col=c(1,2,3,4),pch=c(1,2,3,4))
coplot(c(1,1,2,2)~c(1,2,1,2)|c("A","A","B","B"),col=c(1,2,3,4),pch=c(1,2,3,4
))
but when I try it with xyplot in the lattice package it fails.
2001 Oct 25
2
How to save boot objects?
Hi,
I have problem with saving and later sourcing boot objects. A short
familiar example...
R : Copyright 2001, The R Development Core Team
Version 1.3.1 (2001-08-31)
...
> library(boot)
> data(city)
> ratio <- function(d, w)
+ sum(d$x * w)/sum(d$u * w)
> boot.res<-boot(city, ratio, R=999, stype="w")
> dump("boot.res","boot.res.R")
>
Save
2003 Apr 18
1
Problem with eigen() and LAPACK
Hi all,
when testing the new improvements in the new 1.7.0-version I stumbled
over the following:
>eigen(matrix(c(0,.3,2,.9),2,2))
Error in eigen(matrix(c(0,.3,2,.9),2,2)) :
LAPACK routine DGEEV gave error code -13
>eigen(matrix(c(0,.3,2,.9),2,2),EISPACK=TRUE)
$values
[1] 1.3458236 -0.4458236
$vectors
[,1] [,2]
[1,] -1.1436890 -0.9760443
[2,] -0.7696018
2002 Nov 21
1
Distance between points and a polygon?
Dear R users,
I know that this could easily be solved within a GIS-package, but
sometimes it's more convenient to use R. So here's my question anyway...
Does anyone of you know about any R-functions/code that calculates the
distance between a number points and a polygon or polyline? I have
looked thru the different libraries that deals with spatial statistics
but haven't found
2006 Feb 11
2
how do I "relate" tables in R?
Hi all,
I'm new to the list...pretty new at learning to code in R...
Is there a way to relate 2 different arrays in R?
Hypothetical example:
data1
ID z
1 100
2 250
3 75
4 12
5 89
data2
ID z
1
1
1
1
2
3
4
3
4
5
5
5
etc.
Goal is to fill column z in data2 with appropriate z-values from data1 that
correspond to a given ID.
I'm looking for something akin to a
2006 Feb 16
1
Non sensical AGI Error
I'm getting an error back from an AGI Dial command. Weird thing is that it's STILL performing the Dial.
Here's what I am sending (without the paranthesis):
(EXEC DIAL "SIP/10000|5|tr")
and here's what I am getting (without the paranthesis):
(510 Invalid or unknown command)
Why would I get this response to a seemingly good command? And why would Asterisk go ahead and
2006 Feb 11
2
aggregate vs tapply; is there a middle ground?
Dear all,
I'm wanting to do a series of comparisons among 4 categorical variables:
a <- aggregate(y, list(var1, var2, var3, var4), sum)
This gets me a very nice 2-dimensional data frame with one column per
variable, BUT, as help for aggregate says, <<empty subsets are
removed>>. I don't see in help(aggregate) how I can change this.
In contrast,
a <- tapply(y,
2004 Jul 29
3
Editing Strings in R
I was wondering if there is a way of editting strings in R. I
have a set of strings and each set is a row of numbers and paranthesis.
For example the first row is:
(0 2)(3 4)(7 9)(5 9)(1 5)
and I have a thousand or so such rows. I was wondering how I
could get the corresponding string obtained by adding 1 to all the
numbers in the string above.
Dursun
[[alternative HTML version deleted]]
2002 Oct 16
1
documentation: Missing paranthesis in reshape.Rd (PR#2170)
Full_Name: Michale Na Li
Version: 1.6.0
OS: i386-linux
Submission from: (NULL) (140.142.172.141)
In src/library/base/man/reshape.Rd, one paranthesis is missing, here is the
patch.
*** reshape.Rd.old 2002-10-15 23:32:25.000000000 -0700
--- reshape.Rd 2002-10-15 23:32:35.000000000 -0700
***************
*** 12,18 ****
idvar = "id", ids = 1:NROW(data),
times =
2007 Apr 11
1
Why warnings using lmer-model with family=binomial
Hi all!
My question is why, and what I can do about that
I sometimes, but not always, get warning-messages like
nlminb returned message singular convergence (7)
in: LMEopt(x = mer, value = cv)
or
IRLS iterations for PQL did not converge
when trying to fit a model looking like this:
lmer<-(cbind(Diseased,Healthy)~Fungus+(1|Family)+(1|Fungus:Family),
family="binomial") to four
2005 Aug 23
6
priority of operators in the FOR ( ) statement
Dear All,
I spent an entire evening in debugging a small, fairly simple program in R
- without success. It was my Guru in Bayesian Analysis, Thomas Fridtjof,
who was able to diagonose the problem. He said that it took a long time
for him also to locate the problem.
This program illustrates in some ways the shortcomings of the error
messages that R responds with. In this case, it was quite
2007 Apr 13
1
stacked histograms
I want to produce stacked histograms where the total bar is divided up
according to the n levels of the grouping variable given in the group
argument.
I am using the lattice histogram function and its "group"-argument, but
it is not recognised. The "auto.key" argument, however, is, because it
gives
me the correct group levels and when setting groups = NULL, auto.key =
TRUE
2009 Sep 29
3
How do I access class slots from C?
Hi
I'm trying to implement something similar to the following R snippet using
C. I seem to have hit the wall on accessing class slots using C.
library(fPortfolio)
lppData <- 100 * LPP2005.RET[, 1:6]
ewSpec <- portfolioSpec()
nAssets <- ncol(lppData)
setWeights(ewSpec) <- rep(1/nAssets, times = nAssets)
ewPortfolio <- feasiblePortfolio(
data = lppData,
spec = ewSpec,
2012 Oct 10
6
Exporting summary plm results to latex
Dear all,
I am trying to export my fixed effect results to Latex. I am using the plm package with the summary function. However, it does not look like apsrtable, stargazer, or any other package can accompany using the plm package.
I am interested in a classic table with the coefficient in one row followed by the standard error in paranthesis in the next row and stars by the coefficient to show
2009 Sep 16
2
I want to get a reference to this time series object
I'm trying to get a reference to this object in C
SWX.RET[1:6,c("SBI,"SPI","SII")]
While i am able to access and use a plain SWX.RET object, I'm getting
confused on how to create an object with the array subscripts like above.
Here is what I tried to do. It doesn't work because "[" is obviously not an
operation or function on SWX.RET. So how do I
2016 Dec 12
2
why does parent.frame() cycle when called from inside capture.output()?
Hello R devel/help,
I ran into this strange behavior:
# showstack is supposed to walk through the stack of parent
# environments when it is called:
showstack = function() {
env = environment()
for(i in 1:12) {
env = do.call(parent.frame, list(), env=env)
print(env)
}
}
# a simple chain of functions:
g3=function(t) showstack()
2016 Dec 12
2
why does parent.frame() cycle when called from inside capture.output()?
Hello R devel/help,
I ran into this strange behavior:
# showstack is supposed to walk through the stack of parent
# environments when it is called:
showstack = function() {
env = environment()
for(i in 1:12) {
env = do.call(parent.frame, list(), env=env)
print(env)
}
}
# a simple chain of functions:
g3=function(t) showstack()
2015 Oct 09
4
A where() functions that does what exists() does but return the environment when object lives?
Hi,
exists("foo", inherits=TRUE) check whether an object named "foo"
exists, and get("foo", inherits=TRUE) retrieves it. I'm looking for a
similar function to exists() that returns the environment where the
object "foo" exists, iff at all. If not found, NULL is returned.
Does that exist?
EXAMPLE #1:
> sample2 <- base::sample
> env <-