Displaying 20 results from an estimated 2000 matches similar to: "Keyboard"
2010 Nov 08
7
How to rbind list of vectors with unequal vector lengths?
Hi,
How to rbind these vectors from a list?:
> l <- list(a = c(1, 2), b = c(1, 2, 3))
> l
$a
[1] 1 2
$b
[1] 1 2 3
> do.call(rbind, l)
[,1] [,2] [,3]
a 1 2 1
b 1 2 3
Warning message:
In function (..., deparse.level = 1) :
number of columns of result is not a multiple of vector length (arg 1)
>
-J
2010 May 23
4
creating a reverse geometric sequence
Hello,
Can anyone think of a non-iterative way to generate a decreasing geometric
sequence in R?
For example, for a hypothetical function dg, I would like:
> dg(20)
[1] 20 10 5 2 1
where I am using integer division by 2 to get each subsequent value in the
sequence.
There is of course:
dg <- function(x) {
res <- integer()
while(x >= 1) {
res <- c(res, x)
x
2010 Sep 18
3
How to check the available of a package on R repo
Hi folks,
Debian 504 64-bit
What is the correct syntax to check the available of a package on R repo?
> available.packages("emacs", "OS_type=linux")
Warning: unable to access index for repository emacs
Package Version Priority Depends Imports LinkingTo Suggests Enhances
OS_type License File Repository
> available.packages("emacs")
Warning: unable
2010 Aug 11
4
Arbitrary number of covariates in a formula
Hello!
I have something like this:
test1 <- data.frame(intx=c(4,3,1,1,2,2,3),
status=c(1,1,1,0,1,1,0),
x1=c(0,2,1,1,1,0,0),
x2=c(1,1,0,0,2,2,0),
sex=c(0,0,0,0,1,1,1))
and I can easily fit a cox model:
library(survival)
coxph(Surv(intx,status) ~ x1 + x2 + strata(sex),test1)
However, I want to
2006 May 30
2
problem about asterisk realtime.
hi,
Longing for your help.
I came into a problem ,Now I want to configure asterisk sip
peers from MYSQL database dynamic, flolling the introduction of asterisk
realtime,i set the cofiguration of sip users,but I need to cofigure sip
peers too.
Where I can find some infomation about cofiguring sip peers?
What is the difference of configuration sip peers and configuration sip
2010 Oct 05
4
R editor in ubuntu!
Hello R-Users!
I am looking for an editor to be able to execute commands into R in Linux ubuntu. Is there any suggestion?
Thanks.
[[alternative HTML version deleted]]
2010 Jun 16
3
Function argument as string
Hi,
Suppose a write a function
a_fn<-function(arg1)
{
return(table(arg1));
}
I have a column called AGE. Now I call the function c = a_fn(AGE);
When a_fn is called, AGE is received in arg1. My question is, how do I
access the actual name of the argument arg1? i.e, inside the
function, i need to know that the actual name of arg1 is "AGE" in this
case.
Thanks in advance,
2011 Mar 23
3
Compare three or more values?
Is there a less cryptic way to compare three or more values?
allTheSame<-c("red","red","red","red")
notAllTheSame<-c(132,132,132,999)
all.identical <- function(vectorToTest){
cIdentical=sum(vectorToTest %in% vectorToTest[1])
return(cIdentical==length(vectorToTest))
}
all.identical(allTheSame)
all.identical(notAllTheSame)
Thanks in
2010 Feb 14
4
Feature Request: Multiline Comments
Hello,
Is it possible to extend the R lexer/parser to include multiline comments like
/*
acomment
*/
?
This way I can integrate emacs org-mode with my R code, so that I can
have a table of contents,
section folding, html-output of source etc.
e.g
/*
* Display Code
*/
#+BEGIN_SRC R
foo <- function(...){
stuff
}
#+end_src
and so on .
Thanks
Saptarshi
2010 Jul 16
4
how to comment off sections
Hello,
Is there an way to easy comment of sections of code? I was thinking
something along the lines of
\dontrun{
codeline 1
....
codeline k
}
but that could be used in regular script files. When I am still
working on a script, I often want to being using what is done, but I
would like the parts I am still working on not to be run when I use
source() on the file. I can set everything off
2011 May 04
3
SAPPLY function XXXX
Hello everyone,
I am attempting to write a function to count the number of non-missing
values of each column in a data frame using the sapply function. I have the
following code which is receiving the error message below.
> n.valid<-sapply(data1,sum(!is.na))
Error in !is.na : invalid argument type
Ultimately, I would like for this to be 1 conponent in a larger function
that will produce
2007 May 31
2
Net2Phone Multiple SIP Trunk Not Working
Hi All,
As Net2Phone don't permit more than one session per account, I configured
about 10 sip trunks and configure multiple trunk routing but once the first
trunk is used I cannot make additional calls, I also cofigure my dial plan
in other way using the chanisavail command but still not working.
The chanisavail command configuration is correct as I can make calls using
other trunk than
2010 Apr 30
3
replace elements in a list
Dear all, I have a list like this: l <- list(list(a=1,b=NULL), list(a=2,b=2))
I want to find out the elements with value of NULL and replace them with NA.
The actual case has a very long list, so manually find out and replace
them is not an option.
I can use for loop to do this, but I want to know if there is
vectorized way (or other ways) to do it?
Thanks
--
Wincent Rong-gui HUANG
Doctoral
2010 Jun 15
3
How to see how a function is written
Hello,
If I want to see how, say, apply function is written, how would I be
able to do that?
Just typing "apply" at the prompt does not work.
Thank you for help!
Sergey
2008 Nov 04
2
[LLVMdev] cross compiling using llvm 1.8
Thanks, it helped :-)
I'm now building the sources and apparently my mingw installation does
not support pthread and therefore examples/ParallelJIT.cpp fails:
make[2]: Entering directory
`/c/llvm1.8/generated-llvm/obj/examples/ParallelJIT'
llvm[2]: Compiling ParallelJIT.cpp for Debug build
c:/llvm1.8/llvm/examples/ParallelJIT/ParallelJIT.cpp:20:21: pthread.h:
No such file or
2010 Oct 25
2
Question on passing the subset argument to an lm wrapper
Hello,
How would you go about handling the following situation?
This is on R 2.12.0 on Ubuntu 32-bit.
I have a wrapper function to lm. I want to pass in a
subset argument. First, I just thought I'd use "...".
## make example reproducible
set.seed(123)
df1 <- data.frame(age = rnorm(100, 50, 10),
bmi = rnorm(100, 30, sd = 2))
## create a wrapper using
2009 Dec 07
2
xapain install
Hi,
I am trying to isntall Xapain. I run $./cofigure optionand then I rune make, but it echos following message in infinite loop. Is there anything wrong? How to correct?
---------------------------------
/bin/sh ./libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. -I./common -I./include -Wall -W -Wredundant-decls -Wpointer-arith -Wcast-qual -Wcast-align -Wno-long-long
2010 Aug 21
3
problems with merge() - the output has many repeated lines
Hi everyone,
I have been merging many big dataframes (about 80000 rows
each) and I never had this problem, but now it happened to
me and I want to know if someone knows what could be
happening.
The final dataframe has many rows, an impossible number! I
have done edit(dataframe) and I saw that there are many
repeated rows (all equal).
Thanks for any help,
Cec?lia Carmo
Universidade de
2007 Aug 23
3
Is it posible for an incoming to ring to Polycom and cell at the same time?
If it is posible for a imcoming call to ring both the Polycom desk
phone and my cell phone at the same time, if I dont answer fall back
to my voice mail box.
I would like to hire someone to cofigure that for me.
Bob
--
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2009 Jan 03
1
configurations of IceCast over linux enterprise
Hi am little novice over your product but also need a good hand reinstalling your server platform under linux servers
steppes that where already done
uncrompressed the tar.gz file in out of the www.folder so is now home/gysmonet/icecast/
next
did run the configure file as said
then did tried make
make install and seems nothing happening
Do i need to cofigure anything before running the