> 1. matrices are stored columnwise so R is better at column-wise operations
> than row-wise.
I am seeing this by my code which contains more t() than
what seems healthy. However, the summaries are patient-wise
over repeated measurements. Out of convention, I am storing
patients in rows and measur
[Apologies to Gabor, who I sent a personal copy of the reply
erroneously instead of posting to List directly]
[...]
> Perhaps what you really intend is to
> take the average over those elements in each row of the first matrix
which correspond to 1's in the second in the corresponding
> row of the
Dear ExpRts,
I would like to perform a function with two arguments
over the rows of two matrices. There are a couple of
*applys (including mApply in Hmisc) but I haven't found
out how to do it straightforward.
Applying to row indices works, but looks like a poor hack
to me:
sens <- function(test,
Prof Brian Ripley:
> Linux does not have a clipboard but an X11 session has primary and
> secondary selections. ?file says
>
[...]
> so RTFM applied.
Indeed it did here. Many thanks for the externsive answer despite
the lucid help entry already being there!
_
> This is a bug that has now been fixed. Until a new release of Hmisc
> appears see the following to get a corrected version of latex( ):
> http://biostat.mc.vanderbilt.edu/twiki/bin/view/Main/LatestRFunctions -
> you will need getLatestSource('latex')
It worked.
Many thanks, and apologies for po
ein
My interpretation is that I am not allowed to write into the
clipboard from a program called from R. Is there a way to
change this behaviour?
--
Johannes HüsingThere is something fascinating about science.
[EMAIL PROTECTED] One gets such wholesale returns of conjecture
Frank Harrell rote in a message dating from Oct 8th:
> n.group is an argument to latex.default in the Hmisc package
I must admit that I can't find it in the function head,
which reads on my installation:
function (object, title = first.word(deparse(substitute(object))),
file = paste(title, "
Peter Dalgaard:
> Ben Bolker <[EMAIL PROTECTED]> writes:
>> 1. compose your response
> I've always wondered why step 1. - often the time-consuming bit - is not
> listed last.
The advice applies to the situation when answering immediately would be
your knee-jerk reaction. It is assumed tha
> I want to divide n objects in k classes and need an output with all
> (n+1)(n+2)/2 possibilities.
That's the "set of compositions". You may use the partitions package and
proceed from there (provided the brute-force method suggested by Gabor
is not viable').
> I want to divide n objects in k classes and need an output with all
> (n+1)(n+2)/2 possibilities.
That's the "set of compositions". You may use the partitions package and
proceed from there (provided the brute-force method suggested by Gabor
is not viable').
> The pro's and con's of using "scale breaks" were discussed by
> Cleveland (1985) The Elements of Graphing Data (Wadsworth, pp. 85-91,
> 149). I don't know what Cleveland said about this is the second edition
Spencer Graves:
> but I believe there are times when scale breaks are
> appropr
> Hello sir:
> How can I get "S curve" function via R?
> For SPSS,the function is:y=exp(b0+b1/x)
>
I am not sure if this is the answer you want, but
Scurve <- function(x, b0=0, b1=1) {
exp(b0+b1/x)
}
should do what you request.
Greetings
Johannes
_
> Of course file name Data_i.txt will be the same for changing i,
> unfortunately.
?paste, e.g. paste("Data_", i, ".txt", sep="")
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PLEASE do read the posting guide http
> Dear all,
> I would like to draw a dot chart on a log scale.
> What is the syntax for this? A barchart may use
> log="x", but trying this with dotchart() leads
> to an error message.
ok, I extended dotchart() with a log option.
The main reason I am sticking to dotchart() is
adjusting of axes wit
Dear all,
I would like to draw a dot chart on a log scale.
What is the syntax for this? A barchart may use
log="x", but trying this with dotchart() leads
to an error message.
Greetings
Johannes
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> Johannes Hüsing <[EMAIL PROTECTED]> writes:
[...]
> I think a simple example of what you are trying to do might be needed.
>
I don't think so, as ...
> But take a look at the help pages for assign() and get().
... this seems to be what I was looking for. Many thanks
Dear expeRts,
I am currently struggling with the problem of finding
cut points for a set of stimulus variables. I would like
to obtain cut points iteratively for each variable by
re-applying a dichotomised variable in the model and then
recalculate it. I planned to have fixed names for the
dichotom
duction to R". Am I missing
something here? If desired, I can write a patch for R-intro.texi.
Greetings
Johannes
--
Johannes HüsingThere is something fascinating about science.
[EMAIL PROTECTED] One gets such wholesale returns of conjecture
Dear expRts,
could anybody nudge me toward some documentation about how to
extract the variance-covariance matrix of the fixed parameters
from an lmer object?
Best
Johannes
--
Johannes HüsingThere is something fascinating about science.
[EMAIL PROTECTED] One gets such wholesale
> You could try to zip your data file and see whether there is a change in
> file size that you feel is significant in which case the series is not
> random (-:
... after converting the -1s and 1s to bits, of course.
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Just a remark:
> I need some help using read.ftable to read a contingency table. My columns
> are organized as follows:
> order--family--species--location--number of individuals
As the first three variables are nested, I would expect this table
to contain a lot of structural zeroes. I understand
Hello,
par(las=1) sets the orientation of the axis labels
to horizontal. That is, the tick mark labels. How
do I set the orientation of the axis label, which
annotates the variable plotted along the axis, to
horizontal?
Sorry for asking such a basic question here, but I
haven't found anything in t
Bert wrote:
>>You probably have noticed that
>> I'm quite new
>> to statistics, but I'm working on that...
>>
>>
> And you want to use Bayesian methods?!
>
I was always under the impression that it's mostly a matter of mindset if
you go Bayesian or frequentist, not of your statistical skills.
[..
Hallo Uwe,
Uwe Ligges schrieb:
[...]
> In Johannes' case, the problem is different, because the error message
> is not that clear.
> Johannes, can you install and load the package? Is the DESCRIPTION file
> correct? If so, you might want to send the package in a private message...
I have found the
Dear all,
I am trying to wrap up a package. On entering
R CMD check, I get the following error messages:
[...]
* checking S3 generic/method consistency ... WARNING
Error in .try_quietly({ : Error in library(package, lib.loc = lib.loc,
character.only = TRUE, verbose = FALSE) :
package/names
> On Thu, 17 Mar 2005 13:20:32 +0100 (CET), Johannes Hüsing
> <[EMAIL PROTECTED]> wrote :
[...]
>>Is there a way that the dot-dot-dot argument of a
>>function accepts a list as single arguments, such
>>as funcall in several Lisp dialects?
>
> do.call() comes c
Dear all,
I have a list of time series and want to plot them.
Is there a way that the dot-dot-dot argument of a
function accepts a list as single arguments, such
as funcall in several Lisp dialects?
Greetings
Johannes
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