On Wed, 30 Jul 2003, Yan Yu wrote:
I wonder is there a function in R, which can achieve the functionality
of atoi in C, i.e., convert from a character string to a number?
as.numeric()
I use Sys.getenv(), it returns a character string, e.g., 12, but i need
a number, e.g., 12, to fit into
Dirk -
You can certainly make tickmarks thinner than the axis line by
multiple calls to axis() with different values for lwd. MAYBE
you can overwrite an earlier call by setting col.axis=white
(and no tickmarks) but I've never tried this. mtext() allows
building custom tick labels.
In
The answer is certainly not unique. Your email doesn't say
whether you are asking about principal components or simply
Gram-Schmidt orthogonalization.
- tom blackwell - u michigan medical school - ann arbor -
On Wed, 13 Aug 2003, Feng Zhang wrote:
I have a question about determining
Huan -
The difference between the empirical (bootstrap') result and the
theoretical results shows evidence for autocorrelation in the time
series data.
- tom blackwell - u michigan medical school - ann arbor -
On Wed, 6 Aug 2003 [EMAIL PROTECTED] wrote:
This is more a statistical
help.search(cross validation) returns 'cv.glm(boot)'
and the boot package provides many other utilities for this.
- tom blackwell - u michigan medical school - ann arbor -
On Thu, 14 Aug 2003, array chip wrote:
Hi, is there a package for performing leave-one-out
cross validation in
Frank -
help(tmd) says that in R, the Tudkey Mean Difference plot is
constructed by: x=(x+y)/2, y=y-x. That's different from what
you quote below, but it agrees with my memory of it. Not sure
I understand your question.
- tom blackwell - u michigan medical school - ann arbor -
On
Paul -
Your question is best answered by a textbook reference, because
that will supply all the context needed to fully answer your
question. A good, basic reference is:
George W. Snedecor and William G. Cochran (1980)
Statistical Methods, 7th edition. Iowa State Univ. Press.
ISBN:
Elliott -
I don't know if you've had any other responses off-list yet; none
have shown up on the r-help mailing list during the day today.
I'm really NOT the most expert person to answer this, but I'll give
it a try.
Your option (1) seems entirely possible to me.
Let me do some thinking out
On Wed, 20 Aug 2003, Zitan Broth wrote:
. . .
What I am trying to do is use R as part of a web-based system and call R
from PHP. The common method of interfacing from PHP to many systems is via
the command line (although I could use swig to access R directly but that is
phase 2 ;-) ). I
Laurent -
I had no trouble with configuring, compiling and running R under
Redhat 8.0. My system now gives
uname -a
Linux host 2.4.18-14smp #1 SMP Wed Sep4 12:34:47 EDT 2002 i686 i686 i386 GNU/Linux
rpm -qa | grep readline
readline41-4.1-14
readline-4.3-4
readline-devel-4.3-3
The
The variance of Xbar decreases as 1/n; the sample variance
of X does not.
- tom blackwell - u michigan medical school - ann arbor -
On Tue, 19 Aug 2003, Padmanabhan, Sudharsha wrote:
I am running a few simulations for clinical trial anlysis. I want some help
regarding the following.
Tony -
I happen to have a copy of Erich L. Lehmann and H.J.M D'Abrera (1975)
Nonparametrics: Statistical Methods based on Ranks. Holden-Day, SF,
sitting beside me on my desk this afternoon. What you want is covered
in Section 2.7L on pp. 104-105, titled Scale tests with unknown location.
No, I don't think so. That's a feature not implemented in R.
- tom blackwell - u michigan medical school - ann arbor -
On Thu, 21 Aug 2003, array chip wrote:
I am running a loop to plot multiple plots. In s-plus,
it shows multiple pages in the graphic window to allow
checking on each
Kjetil -
EdadC seems to have only five levels, anyway. What are those
five levels ? Are they strings which it would make sense to
interpret as numeric ? as.numeric() obviously thinks they
are not.
- tom blackwell - u michigan medical school - ann arbor -
On Thu, 21 Aug 2003, kjetil
On Thu, 21 Aug 2003 [EMAIL PROTECTED] wrote:
I was recently working with a dataset on arsenic poisoning. Among the
variables in the dataset, I used the following three variables to produce
crosstabulations (variable names: FOLSTAT, GENDER, ASBIN; all three were
categorical variables, FOLSTAT
help(Subscript)
On Fri, 22 Aug 2003 [EMAIL PROTECTED] wrote:
Hi,
I wonder whether someone can help me with this query.
I have a 12(cols) by 9(rows) matrix X. I need to reduce this matrix so that
it contains 'n' columns (eg. reduce X into a 3 by 9 matrix). What is the
best method to do
Douglas -
Your question is a bit beyond the scope of this list.
It's really at a level appropriate for an advanced graduate
student who is already doing a thesis in the area of time
series data. Best thing is to see whether you can find some
consulting help from a local statistics department.
Jose C. Pinheiro and Douglas M. Bates (2000)
Mixed effects models in S and S-PLUS. NY, Springer, 2000.
ISBN: 0-387-98957-9, LC: QA 76.73 .S15 P561 2000 (locally)
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 25 Aug 2003, Peter Muhlberger wrote:
Hi, does anyone out
Bernhard -
1) DO try building from source. For me it works painlessly
(Redhat 8.0 linux) and ./configure seems to be very good at
locating the resources it needs.
2) The very easiest, dumbest interface between Perl and R is
for Perl to write an ascii file of R commands - exactly what
one
On Mon, 1 Sep 2003, Lariani,Sofiane,LAUSANNE,NRC/BAS wrote:
I want to free memory used by R. The usage of rm and gc give no result. I'm
running an algorithm consuming a huge memory and I need to recover the
memory used by R between 2 call of my algorithm.
Thank you in advance for your help.
Johannes -
There's something special about the way control parameters are
accepted by nlm() and nlme(). Try searching very recent help
archives for nlme() or control. Try duplicating exactly one of
the examples at the bottom of the help page help(nlm). My
recollection is that the parameter
Philip -
Why not compile and load using the unix command line:
R CMD SHLIB files
rather than try to write your own compiler flags ?
See help(SHLIB), help(COMPILE) inside R.
You may have a good reason for NOT going the ordinary
route, but you need to tell us what it is. And do try
the
Bill -
Here's what I would do, starting after your display of anovaresults[[1]].
temp.1 - unlist(lapply(anovaresults, function(x) { x[Pr(F)][1:3],] }))
temp.2 - matrix(temp.1, length(anovaresults), 3, byrow=T)
dimnames(temp.2) - list(names(anovaresults),
Murray -
Suppose your data frame is called mydata. If ALL of the columns were
factors with numeric levels, you could do:
newdata - as.data.frame(lapply(mydata, function(x) as.numeric(as.character(x
(Sorry about the nested functions. I didn't invent these complications.)
When only the
Michael -
Because these columns are factors to begin with, using as.numeric()
alone will have unexpected results. See the section Warning: in
help(factor).
However, it is worth Murray asking himself WHY these columns are
factors to start with, rather than the expected numeric values.
One
WeiQiang -
As I read it, both difficulties arise on the DCOM side,
not in the R syntax. Problem 1, and I'm just guessing,
could arise if you are not allowed to overwrite the
value of Result in the DCOM environment. Try again,
using two different variable names in the two successive
lines.
Josh -
See the example run a simulation in help(try).
This won't be able to tell you the Spearman correlation
when there are fewer than two pairs of non-missing values,
but it will allow the loop to keep running. Caution: the
return value from try() will be a string with the error
message,
Huan -
Look at the function code for order(). To show the function
definition, type just order at the command line (no quotes,
no parentheses). This example is what I found most useful
when I had a similar question. The green book is also useful.
- tom blackwell - u michigan medical
Dear r-help -
I just noticed that in my R-1.7.1 on i386-pc-linux-gnu,
the page displayed by help(print) ends with the line
## Printing of factors illustrated for ex
and then no more. It looks as though something got truncated
here. I think this is an R that I compiled from source off
Peter -
Your subsequent email seems just right. You have to determine
ahead of time which rows can be estimated. Here's a strategy,
and possibly some code to implement it.
Let supported(i,y,d) be a user-written function which returns
a logical vector indicating rows which should be omitted
Peter -
Error !!
I forgot a not in the third line inside the function supported().
And, my mail editor doesn't balance parentheses, so I don't guarantee
that my code is even syntatically correct.
Corrected and re-named version of function:
unsupported - function(i,y,d) {
result - rep(F,
On Tue, 16 Sep 2003, Peter Whiting wrote:
It seems that predict removes rows with insufficient information
(ie, if I replace ALBANY with NA and refactor everything works)
- I wonder why it doesn't exhibit the same behavior when it
encounters a new level - just eliminate the row and go on...
Perhaps MZodet wants the interactive, mouse controlled rotation
capability offered by ggobi www.ggobi.org ? Designed for linux
but advertises better portability to Microsoft Windows.
I have no experience myself either installing or using this.
- tom blackwell - u michigan medical school -
Eryk -
Question 1: Square brackets work, just the same as for
vectors, and return a (smaller or larger) list object.
The new thing with lists, not available (or needed) with
vectors, is double square brackets, which return one list
element as itself, not enclosed in a list.
See
Ruben -
Why not simply save(x, file=new.file.name) ?
See help(save), help(files). The file name must be
quoted, and it must be passed as a named argument to save().
- tom blackwell - u michigan medical school - ann arbor -
On Fri, 19 Sep 2003 [EMAIL PROTECTED] wrote:
HI, i'm
On Tue, 23 Sep 2003, Jaime Lopez Carvajal wrote:
I need to apply discretization to my continuous data.
Is there a method in R to do this?
See help(cut).
- tom blackwell - u michigan medical school - ann arbor -
__
[EMAIL PROTECTED] mailing
Andy -
help(assign) says:
Value: This function is invoked for its side effect, which is
assigning `value' to the variable `x'. ...
Gosh. The help page isn't very specific about what the return
value of assign() IS, but it's not a named object. Your basic
strategy of assigning, writing,
Michael -
new - as.data.frame(lapply(data, function(x,p) rep(x,p), data[[frequency]]))
This should do it. The first paragraph under Details in help(rep)
says what rep(x,p) is doing above. The rest is just hardware to apply
that to every column in your existing data frame, and turn the
Ben -
I think you want something like
new - array(prod(hiaAry, probAry[,,,1], probAry[,,,2],
probAry[,,,3], probAry[,,,4]), dim(hiaAry))
But I'm just guessing.
- tom blackwell - u michigan medical school - ann arbor -
On Thu, 25 Sep 2003 [EMAIL PROTECTED] wrote:
I am
Andreas -
help(postscript) says:
Arguments: file: ... For use with 'onefile=FALSE'
give a 'printf' format such as `Rplot%03d.ps'
(the default in that case).
The %03d will be replaced with a three digit number
in the actual file name. This allows postscript() to
generate a distinct file
Axel -
I believe that a function argument is not literally copied
until the first time it is modified within the function.
See email exchanges on this list from/to Ross Boylan within
the month of September for a more authoritative answer to
this question. (Do you know about the R-help archives
Ed -
You seem to have encountered a bug. I can reproduce Ed's difficulty
in a completely artificial example in which there are unused levels :
tmp - factor(rep(seq(10), seq(10))) # length(tmp) # [1] 55
ave(seq(50), tmp[-seq(5)]) # gives NA in rows 32-50
I would consider
Maintainers - I should have said I am running R 1.7-1 on
RedHat Linux 8.0. - tom blackwell - u michigan medical school -
__
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Dave -
I'm not sure whether there is already a function which does
exactly what you want, because this is kind of a special case.
The functions I wold look at are: by, aggregate, tapply,
mapply, and, in the package nlme one I didn't know about
before called gapply.
But, in your case, the part
Rajarshi -
Why not simply subscript your matrix X to return the rows and
columns you want to keep ? For example,
new - X[16:176, c(3,5,7,9)]
assuming those are the rows and columns you want.
See help(Extract).
- tom blackwell - u michigan medical school - ann arbor -
On Tue, 30 Sep
Arne -
In the past, I've used a data frame for the lookup table and
the and of individual logical vectors to select rows from it.
Here's a simplified version of the selector function I wrote.
My mail editor does not balance parentheses, so I don't guarantee
that this version is syntactically
Marten -
I don't know exactly what interpretation you have in mind
for weights, but if you assign the value of hist() to a
variable tmp, you can then assign the component tmp$counts
any value you like, and plot the result as a histogram
using plot(tmp). See the section Value: in
Silika -
By far the best reference for the nlme package is the book by its
authors:
J.C. Pinheiro and D.M. Bates. Mixed effects models in S and Splus.
Springer, NY, 2000. ISBN (US) 0-387-989579. (There is a different,
European, ISBN number but my library catalog doesn't give it.)
This
Jens -
After reading Help(Surv), yes, I think you have interpreted
the two required arguments to Surv() correctly. I don't know
of a ready-made function to do the transformation you illustrate.
If I had to program it myself, I would use diff(), rep() and
order().
- tom blackwell - u
Crispin -
This is a familiar problem. The only way I know of to do it is:
result - lapply(seq(along=list.a), function(i,a,b) do.it(a[[i]], b[[i]]), list.a,
list.b)
Here, do.it() is the function which operates on two elements.
I use this construction frequently.
- tom blackwell - u
Karim -
try function gam() in package mgcv.
library(mgcv)
help(gam)
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 6 Oct 2003, Karim Elsawy wrote:
I would like to fit a function H = F(x,y,z) but I do not know the
analytical expression
of H, is there a way to
Ann -
Some useful references are given in the help for each function.
Please DO READ the help.
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 6 Oct 2003, Ann Devitt wrote:
Hello,
is there any documentation on doing principal components analysis with R
besides the R
On Mon, 6 Oct 2003, Tamas Papp wrote:
I have a couple of (~200) 3x3 transition probability matrices (ie each
defines a Markov chain). They are all estimated from the same
underlying process, so it ie meaningful to take their elemetwise mean
and standard deviation. [1]
First question:
This is a question you should be able to answer from
the R web site, www.r-project.org.
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 6 Oct 2003, Stefanie Chau wrote:
I wish to install R on my computer but I do not
know how to do this. I have a Windows ME.
Please
Greg -
I am puzzled that the total counts in table(qs2) and table(qs9)
could be different, if these are in fact two columns from the same
data frame. I'm guessing that there are NAs in one or both columns,
in addition to the digits 1,2,3,4, and that table() by default
does not show them.
Kenneth -
Using base package graphics, use plot() on the first call,
then either points() or lines() on subsequent calls to build
up a single plot, layer by layer. Each call can use an argument
col=... . However, the colors themselves are not transparent,
AFAIK, so that where two symbols
Mike -
For predicting class membership, I would use either lda() or
qda() from the MASS package. See the Venables and Ripley
book for detailed description of the methods. You'll have
to rely on your own references for what the 'SIMCA' algorithm
actually does. I've never heard of it. Sounds
Jeff -
The function obj() which you define below is just
a bit peculiar, since inside the function it assigns
attributes to an object 'obj' with the same name as
the *function* but which has not previously been
defined inside the function. Is this really what
you intended ? I'm not enough of
John -
My recollection is that Adrian Raftery's contributed package 'mclust'
does kernel density estimation as well. Not sure whether it does what
you need. Take a look at it on CRAN. Ah..I see that the description
which shows up on Jon Baron's search page is not encouraging. Give it
a try,
I would re-expand the model matrix by indexing its (nobs) rows
with a longer vector (of length n) containing the correspondence.
If there is only one term (say Z) in the formula which contains
the problematic NAs, I would do (roughly)
ff - Y ~ Z# following the example in
Perhaps a much simpler method (just thought of it) would be to set
options(na.action=na.pass)
before you start. Or use na.action=na.pass() as an argument in
the call to model.frame(), since that's where the problem begins.
See help(na.omit), help(model.frame).
- tom blackwell - u
Scott -
I agree with Spencer Graves that there's a scoping issue here:
Where does function Dk() pick up the values for n0 and w,
and does it get them from the SAME place when it's called from
inside FindLikelihood() as from outside ?
But more important is this one: All arithmetic on
Yu-Kang -
Simulations by their nature use randomly generated data.
Sometimes the random data doesn't contain enough information
to fully determine the parameter estimates for one iteration
or another. It seems likely that that is what happened here.
The design matrix is singular for one
Use lm() or glm() with argument 'offset' set to
the value of the column whose coefficient must be 1.
See help(lm).
- tom blackwell - u michigan medical school - ann arbor -
On Wed, 29 Oct 2003, umeno wrote:
Hi,
I would like to know if anyone has any idea of how to run an OLS with
Dear list -
I just discovered to my surprise that I cannot define
a function with an argument named 'break' or 'while'!
'breaks' is okay. Maybe this is no surprise to the R
developers.
R-1.7.1, 2003-06-16, i686-pc-linux-gnu.
- tom blackwell - u michigan medical school - ann arbor -
Arne -
I have carried out exactly your example below, and I
get hc$merge as a matrix with two columns and 15 rows.
Do str(hc) to see a useful representation of the
contents of the returned list. help(hclust) describes
this list in the section Value:. help(Subscript)
shows the various
Neil -
Maybe also the Function and variable index, pages 94-96, and
the Concept index, pages 97-98 in An Introduction to R,
cran.r-project.org/doc/manuals/R-intro.pdf.
- tom blackwell - u michigan medical school - ann arbor -
On Tue, 4 Nov 2003, RINNER Heinrich wrote:
There is
Is this a homework assignment ?
- tom blackwell - u michigan medical school - ann arbor -
On Tue, 4 Nov 2003, Feng Zhang wrote:
Hey, R-listers
When we say a function f(t) is smooth, does this mean that
f has infinite differentials with respect to t?
Or any other formal definition
Jake -
The error message and warnign message shown below say something
is wrong with this file's SPSS system-file header. If you are
really able to open this one in SPSS, do so, change maybe a
column name or row name or two, and save it again under a
different file name. See if read.spss()
read.spss needs, though!
Thanks again
Jake
On Tue, 4 Nov 2003, Thomas W Blackwell wrote:
Jake -
The error message and warnign message shown below say something
is wrong with this file's SPSS system-file header. If you are
really able to open this one in SPSS, do so, change maybe
Ken -
Either test each simulated data set explicitly for the
condition which causes factanal() to fail (perhaps rank
deficiency ?), or else use try(). Which is quicker,
using try() or restarting your simulation from the
beginning each time there's a failure ?
- tom blackwell - u michigan
JB and Michael -
I'm coming into this without having reviewed the earlier emails
(if there are any) in this thread. But I will guess that the
data come from a high school physics experiment on gravitational
acceleration which drops a weight dragging a paper tape through
a buzzer with a piece of
Ann -
Maybe you are looking for
plot( ..., xlab=, ylab=)
followed by title(xlab=the real x axis label)
title(ylab=the real y axis label, mgp=c(2.5,0.5,0))
This is a construction that I use all, all, all the time.
- tom blackwell - u michigan medical
Scott -
The second argument to boot(), called 'statistic', can be
any user-written function you want to cook up, with additional
arguments being passed to it through the '...' mechanism after
all of the named arguments. (See: `R-intro `Writing your own
functions `The ellipsis argument for
Paul -
This situation seems like an obvious candidate for a log-linear model.
See the book MASS for details. They're beyond the scope of this list.
Or try help.search(log-linear).
(and ... can you find a way to break lines when sending your email ?)
- tom blackwell - u michigan medical
Kjetil -
Frankly, your file would be much, much easier to read
if it didn't have a row name at the beginning of each
line. Any chance you can edit it to remove those ?
Then, I think you could read in the numeric data with
just one call to scan:
mat - matrix(0, 21, 21)
mat[row(mat) =
On Mon, 10 Nov 2003, Thomas W Blackwell wrote:
The second argument to boot(), called 'statistic', can be
any user-written function you want to cook up, with additional
arguments being passed to it through the '...' mechanism after
all of the named arguments. (See: `R-intro `Writing
Jesper - (off-list)
Jim MacDonald reports seeing different memory-management behavior
between Windows and Linux operating systems on the same, dual boot
machine. Unfortunately, this is happening at the operating system
level, so the R code cannot do anything about it. I have cc'ed
Jim on this
Mikyoung -
All answers are yes, but IMHO you are trying to be
too clever with your data structure. Programming is
*much* easier if you keep things simple.
Specifically:
(1) The function matrix() will happily build you
a matrix of type list, with each element of the list
occupying one cell
David -
I had to try your example verbatim before I understood what is
happening. index - numeric() creates a vector with no entries.
Therefore the subscript is neither positive or negative, rather
it contains no numeric values, so the return contains no entries
either. Works the same in
On Mon, 17 Nov 2003 [EMAIL PROTECTED] wrote:
Dear list members,
I am trying to use nlm function to maximize a mixture likelihood of beta
densities. There are five unknown parameters in the likelihood. Since I can
get the analytic gradient, I attach the gradient attribute in my target
Rajarshi -
Do you want three sets, three disjoint sets, or sets of
size three ? It's not clear what you are attempting to do.
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 17 Nov 2003, Rajarshi Guha wrote:
Hi,
I'm trying to write a function that will divide a
).
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 17 Nov 2003, Rajarshi Guha wrote:
On Mon, 2003-11-17 at 20:01, Thomas W Blackwell wrote:
Rajarshi -
Do you want three sets, three disjoint sets, or sets of
size three ? It's not clear what you are attempting to do
Kenneth -
I recall a message on the [r-pkgs] list from Ray Brownrigg
on November 1 this year that may be relevant. At that time
he was announcing the availability of maps_2.0-8.zip and
some other packages.
Therefore, 2.0-10 must be *very* recent and might still be
going through the CRAN
Anthony -
It seems just possible that the difficulty may have nothing to do
with nlme() or any other data analysis. The graph you describe
could result if one of the y-values was five time as large as any
of the others. This could result from an error in reading the
data input file, a missing
Nicolaas -
help.search(kruskal) returns:
kruskal.test(ctest) Kruskal-Wallis Rank Sum Test
This means that the function is kruskal.test() in the
ctest package. In order to run it, you must do
library(ctest) first.
HTH - tom blackwell - u michigan medical school - ann arbor -
.
- tom blackwell - u michigan medical school - ann arbor -
On Fri, 21 Nov 2003, Thomas W Blackwell wrote:
Nicolaas -
help.search(kruskal) returns:
kruskal.test(ctest) Kruskal-Wallis Rank Sum Test
This means that the function is kruskal.test() in the
ctest package. In order
Martin -
I can't figure out what question you are asking.
Does either predict.glm() in the base package or
cv.glm() in the boot package do what you want ?
The theory for all of this is given in the references
listed in the help pages for glm and cv.glm.
- tom blackwell - u michigan
Arend -
Here is a sequence of commands which will do it.
These first build a vector of (4+1) cutpoints,
then cut() returns a factor whose labels are
the colors and codes are determined by x. Last,
as.character() turns the factor into the character
vector which you ask for. Or, perhaps the
Eugene -
Is the estimand in your problem (the parameter which you seek
to estimate) discrete-valued or continuous-valued ? If it is
discrete-valued, then you are heading in the wrong direction,
because no matter how smooth you make the objective function,
you will not be able to differentiate
Stephen -
If the four columns shown below are in this order in a data
frame named 'data', then use
covariances - by(data[ ,-1], data$Class, cov)
to get the covariance matrices within each of the four classes.
Alternative functions would be tapply() or aggregate(), but
the syntax for by()
On Wed, 3 Dec 2003, Arend P. van der Veen wrote:
Your recommendations have worked great. I have found both cut and
ifelse to be useful.
I have one more question. When should I use factors over a character
vector. I know that they have different uses. However, I am still
trying to figure
Bruno -
Many people add a tiny random number to each of the distances,
or deliberately randomize the input order. This means that
any clustering is not reproducible, unless you go back to the
original randoms, but it forces you not to pay attention to
minor differences.
Ah, I think you're
Mathieu -
That's easy. Assign the return value of hist() to some
variable, say fixed, then go in and hack the value of
fixed$counts however you like, and re-plot using plot(fixed).
Example code:
fixed - hist(rnorm(2000))
fixed$counts - fixed$counts / 5
plot(fixed)
I confess I didn't quite
Ellen -
plot(my.x.vector, my.y.vector, xlim=c(-3,3), ylim=c(-3,3))
It's the named arguments xlim and ylim that you were looking for.
I frequently set them as xlim = 3 * c(-1,1), ylim = 3 * c(-1,1)
so that I can change the range by editing just one number rather
than two. For an added fillip,
Vincent -
From the values shown, this looks like a Bioconductor question,
rather than base R. You might try the maintainers of whatever
package the function comes from.
Is 2287 the index in levels for one of the character strings
shown ?
- tom blackwell - u michigan medical school - ann
Stephen -
If command line editing does not work as it should, I would look
first into providing a patched readline. See Graeme Ambler's
patched version in
On Fri, 12 Dec 2003, Stephen Dicey wrote:
How can I set up the CLEDITOR (command line) variable in R if there is
one? I am on a Solaris
(oops, wrong keystroke)
... in the unix source directories (at least for Redhat linux)
on CRAN.
- tom blackwell - u michigan medical school - ann arbor -
On Fri, 12 Dec 2003, Stephen Dicey wrote:
How can I set up the CLEDITOR (command line) variable in R if there is
one? I am on a
On Wed, 17 Dec 2003, Savano S. Pereira wrote:
UseRs,
I used the optim function
valor.optim - optim(c(1,1,1),logexp1,method
=BFGS,control=list(fnscale=-1),hessian=T);
and I want to calculate the derivates, [ ... snip ... ]
but I found, [ ... snip ... ]
The derivates are zero. Why?
Bill -
The behavior of the old-S function printer() was to count overstrikes
in the way you describe. This was a non-graphics output device which
would make a crude scatterplot using ascii characters (spaces and
asterisks, for example) in response to plot() commands.
I've looked for printer
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