Displaying 20 results from an estimated 23 matches for "m1b28".
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2001 May 30
2
new book
...an Xgobi reference
--
+---------------------------------------------------------------------------+
| Robert Gentleman phone : (617) 632-5250 |
| Associate Professor fax: (617) 632-2444 |
| Department of Biostatistics office: M1B28
| Harvard School of Public Health email: rgentlem@jimmy.dfci.harvard.edu |
+---------------------------------------------------------------------------+
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r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik...
2002 Mar 18
3
function design
I have a, no doubt, simple question. I wish to write a function such
that
a <- 9
b <- 10
changer _ function(x,y) { if (y>x){ x <<- Y+1}}
Of course there are easier ways to accomplish the task above, but I am
more interested in how to have the "x <<- Y+1" part of the function to
change x in place for purposes of a much larger function.
I have been wrestling with
2001 Oct 02
1
problem with while loop with next (was RE: file connection, w hile, readLines and browser)
...----------------------
> > --------------+
> > | Robert Gentleman phone : (617) 632-5250
> > |
> > | Associate Professor fax: (617) 632-2444
> > |
> > | Department of Biostatistics office: M1B28
> > | Harvard School of Public Health email:
> > rgentlem at jimmy.dfci.harvard.edu |
> > +-------------------------------------------------------------
> > --------------+
> >
>
> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
> -.-.-.-....
2001 Nov 22
1
p-value using survdiff
Dear all,
Does anyone knows how I could extract the p-value in:
> survdiff(Surv(tempo,status) ~ grupo,data=dados1,rho=1)
Call:
survdiff(formula = Surv(tempo, status) ~ grupo, data = dados1, rho = 1)
N Observed Expected (O-E)^2/E (O-E)^2/V
grupo=1 21 5.12 12.00 3.94 14.5
grupo=2 21 14.55 7.68 6.16 14.5
Chisq= 14.5 on 1 degrees of freedom,
2001 May 22
0
Job announcement
...rested.
Thanks.
--
+---------------------------------------------------------------------------+
| Robert Gentleman phone : (617) 632-5250 |
| Associate Professor fax: (617) 632-2444 |
| Department of Biostatistics office: M1B28
| Harvard School of Public Health email: rgentlem@jimmy.dfci.harvard.edu |
+---------------------------------------------------------------------------+
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik...
2001 Jul 16
0
[R] RE: too many arguments in foreign function call
...--------------------------------------
> ----------------+
> | Robert Gentleman phone : (617) 632-5250
> |
> | Associate Professor fax: (617) 632-2444
> |
> | Department of Biostatistics office: M1B28
> | Harvard School of Public Health email:
> rgentlem@jimmy.dfci.harvard.edu |
> +-----------------------------------------------------------
> ----------------+
>
LEGAL NOTICE
Unless expressly stated otherwise, this message is confidential and may be privileged. It...
2001 Oct 11
1
unary "-" on logicals
"An Introduction to R" says that arithmetic operators
coerce logical vectors to numeric vectors. This doesn't
seem to be true for unary "-" however:
> x <- 1:10
> p1 <- (x > 5)
> p2 <- (-p1)
> is.logical(p2)
[1] TRUE
> is.numeric(p2)
[1] FALSE
Since "==" always does binary comparison, this can lead to
some bizarre behavior:
> p1
2001 Nov 25
2
Boxplots using percentiles?
The standard R boxplot appears to use quartiles to determine the height of
the rectangles and a range parameter - RNG - (default=1.5 I think) that
determines the length of the whiskers as <= RNG x Interquartile Range. Is
it possible to instead define the range as extending to the 95th percentile?
If so, how would this be done?
nb, I'm plotting multiple boxplots on a single chart so a
2001 Oct 02
0
An example (was RE: file connection, while, readLines and bro wser)
...----------------------------------------------------
> --------------+
> | Robert Gentleman phone : (617) 632-5250
> |
> | Associate Professor fax: (617) 632-2444
> |
> | Department of Biostatistics office: M1B28
> | Harvard School of Public Health email:
> rgentlem at jimmy.dfci.harvard.edu |
> +-------------------------------------------------------------
> --------------+
>
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r-help mailing list -- Read htt...
2001 Oct 02
1
RE: problem with while loop with next
...gt; > > > | Robert Gentleman phone : (617) 632-5250
> > > > |
> > > > | Associate Professor fax: (617) 632-2444
> > > > |
> > > > | Department of Biostatistics office: M1B28
> > > > | Harvard School of Public Health email:
> > > > rgentlem at jimmy.dfci.harvard.edu |
> > > > +-------------------------------------------------------------
> > > > --------------+
> > > >
> > >
> > > -.-.-....
2001 Oct 17
0
Assignment of structures on a given environment]
...--
>
+---------------------------------------------------------------------------+
> | Robert Gentleman phone : (617)
632-5250 |
> | Associate Professor fax: (617)
632-2444 |
> | Department of Biostatistics office: M1B28
> | Harvard School of Public Health email:
rgentlem at jimmy.dfci.harvard.edu |
>
+---------------------------------------------------------------------------+
>
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
> r-help mailing list -- Read
http://www...
2001 Apr 11
1
a couple of ideas/proposals
...become necessary.
--
+---------------------------------------------------------------------------+
| Robert Gentleman phone : (617) 632-5250 |
| Associate Professor fax: (617) 632-2444 |
| Department of Biostatistics office: M1B28
| Harvard School of Public Health email: rgentlem@jimmy.dfci.harvard.edu |
+---------------------------------------------------------------------------+
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik...
2001 Oct 09
2
list of functions flagged with debug() or trace()
Hello all,
Since I got no answer to my first mail, I suspect I did not formulate my
question adequately, so I try again.
In R, one can debug or trace a function 'foo' with debug(foo) or trace(foo),
respectively. This leads to a special treatment of the function 'foo' until
one enter undebug(foo) or untrace(foo). I would like to know if there is a
convenient way to know at any
2002 Mar 08
2
Sys.putenv environment variables disappear (PR#1371)
Environment variables set with Sys.putenv() disappear (i.e. become "")
after a while, especially after heavy-duty I/O. Example:
R> x <- matrix(1., 3000, 3000)
R> save(x, file="myx.RData")
R> Sys.putenv(HOME="/tmp")
R> while (Sys.getenv("HOME") != "") {cat("ok\n"); load("myx.RData")}
The loop prints
2002 Jun 02
2
cluster installation hangs or too many args (PR#1624)
Full_Name: Felix Hernandez-Campos
Version: R-1.5.0
OS: IRIX, FreeBSD, Solaris
Submission from: (NULL) (208.30.174.32)
[R-1.5.0]
The installation of the package cluster fails in FreeBSD (4.2) and IRIX (6.5)
(but it works fine for Solaris). In FreeBSD, the installation hangs right after
f77 -fPIC -g -O2 -c clara.f -o clara.o
(the first FORTRAN compile). In IRIX, the program also hangs at
2001 Sep 25
3
Error in optim(p, fun,...)
All:
I am getting an error code from the optimization function. The code is
Error in optim(p,fun.LLike, lower=low, upper = up, method = "L-BFGS-B", :
non-finite finite-difference value [0]
If I add a trace=6 option to my control list the last message before
this error is:
At X0, 0 variables are exactly at the bounds
Any ideas on where I should start would be
2001 Sep 18
1
case weights in coxph (survival)
Hi,
I am having trouble with the survival library, particualrily the coxph
function.
the following works
coxph(jtree9$cph.call,z,rep(1,dim(z)[1]))
Call:
coxph(formula = jtree9$cph.call, data = z, weights = rep(1, dim(z)[1]))
coef exp(coef) se(coef) z p
SM 0.2574 1.294 0.0786 3.274 1.1e-03
Sex -0.1283 0.880 0.1809 -0.709
2002 Mar 06
3
Problem in .First.lib
Hello!
I downloaded a package "multtest" (from bioconductor.org) in R, and
installed it by 'R CMD <package>' (after unzipping and taring).
The problem is when I say 'library(multtest)' in R, the following error is
generated:
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
2002 Apr 04
3
assign, documentation (PR#1434)
Hi,
The help for `assign' says
In all the assignment operator expressions, `x' can be a name or
an expression defining a part of an object to be replaced (e.g.,
`z[[1]]'). The name does not need to be quoted, though it can be.
So I would expect that by
a<-1:4
assign("a[1]",2)
the first component of a gets the value 2, but the object "a[1]" is
2001 Apr 23
4
several bugs (PR#918) lists and matrices
## Thomas rightly points out that list() is not the best structure for
## homogeneous data. My example was the simplest that generated the
## error of a matrix structure that that doesn't work. The application
## that this is simplified from needs lists because the data isn't
## homogeneous. I am attempting to write a missing value class, where
## each item is a list. In the simplest