Displaying 20 results from an estimated 4000 matches similar to: "Help Documentation (PR#6714)"
2004 Mar 29
0
Help Documentation (PR#6715)
Dear all,=20
without taking sides here, I see two major advantage of keeping the
redundancy in any documentation minimal. First, it makes the
maintanance of the documentation as simple as possible. This in turn,
minimizes the risk for getting inconsistent documentation in new
updates. Otherwise, someone has to have a really good overview and
know where to update when, say, one default argument is
2004 Mar 29
0
Help Documentation (PR#6716)
hi henrik (all): A better solution would be to have levels:
set.help(level="beginner"), which then provides expanded explanations.
However, I do not think this is necessary: For the most part, the online
R docs are great. It is not more detailed explanations that beginners
crave. My primary wishes arise as I stumble onto a need, and then wish
for a few more examples of different
2004 Mar 29
3
Help Documentation
I think many people share your view and are aghast at the
reception that some well-intentioned posts receive. There
have been past discussions on this and many people feel the
way you and I do.
Just to head off another round, let me acknowledge that
there appears to be multiple viewpoints and although hard
to believe by myself, there actually is a contingent that
views what I see as
2004 Mar 29
1
Help Documentation (PR#6717)
Ivo,
Let me address your points in reverse order:
1. There is a `wishlist' category for bug reports, which I guess you've
overlooked.
2. There is also a `Contributed Documentation' section on the R web site,
which you can submit your contribution. As well, there are a few
introductory level documents there already that you might be interested.
3. I must repectfully disagree about
2004 Mar 28
0
Help Documentation (PR#6711)
ladies and gents:
I have posted a couple of simple questions recently. As often happens
to novices, the information was there somewhere, even in front of my
eyes, and I just did not see it. I looked in docs that seemed to me to
be the right place for this particular information, but did not find it.
There is no question: mea culpa, and everything is documented somewhere
in R. (Worst
2004 Mar 29
0
Help Documentation (PR#6712)
On 28 Mar 2004 at 16:52, ivo welch wrote:
>
> ladies and gents:
>
> I have posted a couple of simple questions recently. As often happens
.
.
.
> I was told by Brian to stop sending such suggestions, in order not to
> clutter the R bug report list. OK, I can save my time; I just wanted
He told you stop sending them to R-bugs!
When you get a little more experience, send them
2004 Feb 24
0
Suggestions ?!?!
For the question at the end, try barplot with the
horiz=TRUE argument.
Date: Tue, 24 Feb 2004 09:30:21 -0500
From: ivo welch <ivo.welch at yale.edu>
To: <r-help at stat.math.ethz.ch>
Cc: <r-help-owner at stat.math.ethz.ch>,ivo welch <ivo.welch at yale.edu>
Subject: [R] Suggestions ?!?!
hi chaps:
* I have some suggestion, the first of which is about
2011 Feb 27
0
foreach() package for parallel computing
dear R experts---I have been experimenting with the foreach package
(with doMC) for a while.
my first impression is that it is a very easy way to acquire parallel
processing capabilities. (thanks, revolution R.) the only two
gotchas were about installation (it required an exit and restart), and
the precedence order of the foreach (higher than '+', I think), but
once I understood this,
2011 Jul 02
2
speeding up perception
Dear R developers: R is supposed to be slow for iterative
calculations. actually, it isn't. matrix operations are fast. it is
data frame operations that are slow.
R <- 1000
C <- 1000
example <- function(m) {
cat("rows: "); cat(system.time( for (r in 1:R) m[r,20] <-
sqrt(abs(m[r,20])) + rnorm(1) ), "\n")
cat("columns: "); cat(system.time(for (c
2004 Feb 25
1
aliases (PR#6614)
Full_Name: ivo welch
Version: 1.8.1
OS: linux
Submission from: (NULL) (130.132.33.212)
please define aliases for the 5 essential data set operations
delete row
insert row
delete column
insert column
rename column
these are too difficult for novices as-is now, and the cost for doing this for
you would be very low. if need be, define hints only, such as
dataset.del.row() <-
2011 Nov 11
0
mc.cores and computer settings on osx and linux
for the googleable r-help archives, I thought I would post what I
wrote into my .Rprofile to automatically set some system information.
the most relevant aspect is the determination of mc.cores. this is
useful when users want to use the parallel package
options(uname= system("uname", intern=TRUE))
options(os= if (getOption("uname")=="Darwin") "osx"
2025 Jan 19
1
[External] Re: Parser For Line Number Tracing
Avi,
Yes, R (really S) was not designed for novice users but rather for experts. For better or worse it has evolved into a programming language used by tyros, and experts. Debugging tools should be easy to use, generally known, and helpful for tyro and expert. It would certainly help if R reported the line number, or the code, that generated the error.
John
John David Sorkin M.D., Ph.D.
2010 Aug 18
1
Fwd: \ell symbol (log-likelihood)
I sent this privately to ivo welch yesterday, and he thinks it might
be useful to someone else as well. Since I'm on a Mac the screen
device is quartz():
> quartz()
> plot( c(0,1), c(0,1) );
> text( 0.5, 0.5, "\u2113" )
# and then File/Save As/
--
David.
Begin forwarded message:
> From: David Winsemius <dwinsemius at comcast.net>
> Date: August 17,
2025 Jan 19
1
[External] Re: Parser For Line Number Tracing
Arguably, R was not designed or evolved for truly novice users, nor really was Python or just about all computer languages. As they evolved and became in many ways more powerful, they tended to get ever less user friendly in the way you are asking for and gotten so bloated that many features are not familiar even to expert users.
Compiled languages can have ways to keep track of what LINE of code
2006 Mar 28
3
fixed effects
dear R wizards:
X is factor with 20,000*20=800,000 observations of 20,000 factors.
I.e., each factor has 20 observations. y is 800,000 normally
distributed data points. I want to see how much R^2 the X factors can
provide. Easy, right?
> lm ( y ~ X)
and
> aov( y ~ X)
Error: cannot allocate vector of size 3125000 Kb
is this computationally infeasible? (I am not an expert, but
2025 Jan 19
1
[External] Re: Parser For Line Number Tracing
understood.
but, please, consider not people like me but unwary beginners and
students of R. I have used R now for decades, and even I am baffled
by it. Couldn't you make R code easier to debug not only for people
like me (who can indeed tweak their environments) but also for novice
users?
On Sun, Jan 19, 2025 at 8:46?AM <luke-tierney at uiowa.edu> wrote:
>
> On Sun, 19 Jan
2011 Sep 13
1
CMYK color space
dear R experts---I am struggling with the requirements to prepare my files
for my printers. I am printing in 2/2 format, which means cyan and black
for me, which they take from my color-separated pdf files. R comes into
play, because it produces all the figures that are embedded in my book
(pdflatex).
now, TeX has no problems producing CMYK files. However, R produces RGB
files (for
2010 May 09
0
non-linear estimation with many firm-specific parameters
Dear R experts---
I doubt that someone has already solved my problem, but I thought I
would ask quickly, just in case someone has.
Let' say I start with a (flattened panel) model that says
y[i] = x[i] + b*(T-x[i])
easy enough---this is just a linear model. I could also make this a
fixed-effects model if I change T to T[fmid], where fmid is the firm's
id. I know I can do this
2012 Dec 24
2
parallelized version of "by" and "ave"
Dear R experts---
Has anyone written parallel versions of "by" (i.e., mcby) and "ave"
(i.e. mcave) ? I did ask a question like this a year ago, and then
the answer was no.
for those who are googling the group for the answer to this question,
in the meantime, the poor man's version of "by" is mclapply( split(
ds, factor ), FUN )
I don't know the poor
2019 Aug 02
2
Re: nbdkit random seek performance
On Thu, Aug 01, 2019 at 03:44:31PM -0700, ivo welch wrote:
> hi richard---arthur and I are working with nbdkit v1.12.3 on qemu/kvm.
>
> we found that our linux (ubuntu 16.04 32-bit) boot time from a local .img
> file went from about 10 seconds to about 3 minutes when using the nbdkit
> file plugin instead of directly connecting qemu to the file. on further
> inspection with