Displaying 20 results from an estimated 20000 matches similar to: "how to replace the second "-""
2008 May 14
2
basename/dirname produce incorrect results
The incorrect result incurs when the file path contains Chinese character.
It seems that dirname/basename action on unit of byte instead of char, so
the result in the following example is half of what is expected.
> g<-"d:\\$BG!2L4^M-CfJ8(B\\$BG!2L4^M-CfJ8(B.txt"
> dirname(g)
[1] "d:/$BG!2L4^(B"
> basename(g)
[1] "$BG!2L4^M-(B"
--
HUANG Ronggui,
2008 Jan 21
3
Need suggestions about GUI
What I want to do is:
1, creat a text box, insert text into that box.
2, select chunk of of the text by mouse, and link it to a lable. so I would
like a way to get that chunk of text.
Can I do such job with tcltk? Any relavant tutorial materials?
Thanks
--
HUANG Ronggui
Bachelor of Social Work, Fudan University, China
Master of sociology, Fudan University, China
Ph.D. Student , CityU of
2007 May 19
2
What's wrong with my code ?
I try to code the ULS factor analysis descrbied in
ftp://ftp.spss.com/pub/spss/statistics/spss/algorithms/ factor.pdf
# see PP5-6
factanal.fit.uls <- function(cmat, factors, start=NULL, lower = 0.005,
control = NULL, ...)
{
FAfn <- function(Psi, S, q)
{
Sstar <- S - diag(Psi)
E <- eigen(Sstar, symmetric = TRUE, only.values = TRUE)
e <- E$values[-(1:q)]
e <-
2005 Nov 27
2
multilevel models and sample size
It is not a pure R question,but I hope some one can give me advices.
I want to use analysis my data with the multilevel model.The data has 2 levels---- the second level has 52 units and each second level unit has 19-23 units.I think the sample size is quite small,but just now I can't make the sample size much bigger.So I want to ask if I use the multilevel model to analysis the data set,will
2008 May 12
1
Insert a recorde into a table using SQL
Dear list,
I want to insert a recorde into a SQLite table by dbGetQuery(), but
there is a problem when the value contains quotation mark.
> dd<-data.frame(txt=c("having both ' and \" in character.","OK"))
> library(RSQLite)
Loading required package: DBI
> con<-dbConnect(dbDriver("SQLite"),":memory:")
>
2005 Oct 15
2
how to import such data to R?
the data file has such structure:
1992 6245 49 . . 20 1
0 0 8.739536 0 . . .
. . . . . "alabama"
. 0 .
1993 7677 58 . . 15 1
0 0
2012 May 09
2
file path
Dear all, is there any function to assert whether a file path is
legitimate, and to convert any potential file path to a legitimate
file path?
I automate a batch of files and write them to plain text files with
cat(). The file argument of cat() is generated automatically which may
contain characters such as ? < >, unacceptable in Windows OS. What I
do at this moment is to strip such
2008 Jun 07
1
Problem of installing Matrix
[wincent at PC-BSD]export MAKE=gmake
[wincent at PC-BSD]sudo R
.....
> install.packages("Matrix")
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
trying URL 'http://bibs.snu.ac.kr/R/src/contrib/Matrix_0.999375-9.tar.gz'
Content type 'application/x-gzip' length 1483674 bytes (1.4 Mb)
opened URL
2005 Dec 12
3
question about date's
Hi,
Given a frame with calendar date's:
"2005-07-01", "2005-07-02","2005-07-03","2005-07-04","2005-07-05",etc.
I want to extract the following from these dates:
week number
month number
year number
Any ideas how to accomplish this?
Many thanks.
Regards,
Richard
2006 Apr 14
3
The object argument of NextMethod.
My question is when the object argument of NexthMethod be used?
In the following example, weather object argument is used will not
affects the result.
###
foo=function(x) {UseMethod("foo")}
foo.cls1=function(x)
{
x=x+1;class(x)<-"ncls"
NextMethod()
}
foo.ncls=function(x)
{
cat("ncls\n")
}
foo.cls2=function(x)
{
cat("cls2\n");print(x)
}
2006 Oct 20
1
Where can I get the sweave package ?
Un texte encapsul? et encod? dans un jeu de caract?res inconnu a ?t? nettoy?...
Nom : non disponible
Url : https://stat.ethz.ch/pipermail/r-help/attachments/20061020/616112b4/attachment.pl
2005 Oct 23
1
question about technieque do with large computation
The green book tells:"The basic technique is classic :keep it simple ."A long ,complicated expression or function is less fravorable than" a relatively small computations that combines calls to a few other functions to perform its tasks."
But I don't get the point totally.Can anyone give me an example to make me understand this rules totally?
ps:
Is it mean that f1 is
2007 May 27
2
Question about "evalq"
The help page of eval says: The 'evalq' form is equivalent to
'eval(quote(expr), ...)'. But the following is not equivalent. Can
anyone give me some explaination? Thanks very much.
> f1 <- function(x,digits=5) lapply(x, f2)
> f2 <- function(x) eval(quote(print(x+1,digits=digits)),list(x=x),parent.frame(2))
> f1(list(x1=1))
[1] 2
$x1
[1] 2
>
> f1 <-
2006 Nov 23
2
writing character to a file in UTF-8
Dear lister,
I would like to now if there a universal way to writing a character
vector to a file in UTF-8 encoding? By " universal", I mean a way
which works under Linux, Windows and Mac.
Thanks in advance!
--
Ronggui Huang
Department of Sociology
Fudan University, Shanghai, China
2011 Apr 26
1
rJava Help
I believe this posting is placed, and I take the liberty to re-direct
to the r-help mailing list.
Regards,
Ronggui
On 26 April 2011 12:33, <gopala at mail.gvsu.edu> wrote:
> ?I am trying to create a web user interface using RApache. I need to install rJava packge but I am getting the following error message
>
> RApache Warning/Error!!!
>
> Error : .onLoad failed in
2007 Jun 15
2
method of rpart when response variable is binary?
Dear all,
I would like to model the relationship between y and x. y is binary
variable, and x is a count variable which may be possion-distribution.
I think it is better to divide x into intervals and change it to a
factor before calling glm(y~x,data=dat,family=binomail).
I try to use rpart. As y is binary, I use "class" method and get the
following result.
>
2006 Feb 02
2
how to use mle?
>Y
[,1] [,2] [,3]
[1,] 0 1 0
[2,] 0 1 0
[3,] 0 0 1
[4,] 1 0 0
[5,] 0 0 1
[6,] 0 0 1
[7,] 1 0 0
[8,] 1 0 0
[9,] 0 0 1
[10,] 1 0 0
>X
pri82 pan82
1 0 0
2 0 0
3 1 0
4 1 0
5 0 1
6 0 0
7 1 0
8 1 0
9 0 0
10
2005 Dec 06
7
R is GNU S, not C.... [was "how to get or store ....."]
======= 2005-12-06 22:16:17 伳侜佋佢伬伌佇伵佒佇佇伌伒伬仯伜=======
>Martin Maechler a 侀crit :
>
>> please, please, these trailing ";" are *so* ugly.
>> This is GNU S, not C (or matlab) !
>>
>> but I'll be happy already if you could
>> drop these ugly empty statements at the end of your lines...
>
>May I disagree ?
>I find missing ";" at
2005 Nov 24
2
what's the meaning of these in R-lang?
In this case the environment contains the variables local to the function, and its enclosure is the environment of the enclosing function.(R-lang:p11)
I want to know if the "enclosing function" means the closure of the function? for example ,if I call function mean(),and the create an environment,say e1,then the enclosure of e1 is the namespace of base package? Right?
Thank you!
2006 Feb 22
2
does multinomial logistic model from multinom (nnet) has logLik?
I want to get the logLik to calculate McFadden.R2 ,ML.R2 and
Cragg.Uhler.R2, but the value from multinom does not have logLik.So my
quetion is : is logLik meaningful to multinomial logistic model from
multinom?If it does, how can I get it?
Thank you!
ps: I konw VGAM has function to get the multinomial logistic model
with logLik, but I prefer use the function from "official" R