Displaying 20 results from an estimated 3000 matches similar to: "Suggestions ?!?!"
2004 Feb 12
1
suggestion "suggestion" and dataframe operations
hi chaps:
a simple suggestion: R tells me who the contributors() are, but this
should also tell me where I should mail suggestions to. Is it this
mailing list? a repository of suggestions? an individual?
this came up because i wanted to suggest two small enhancements:
the first is for the summary() method for plain data frames. it would
seem to me that the number of "NA"s
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
0
Help Documentation (PR#6714)
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 Jan 22
4
Axes Ticks
Apologies, basic question on plot.
y <- c(-4,3,-2,1);
x <- c("time 1", "time 2", "time 3", "time 4");
plot(x,y, type="b");
of course fails.
x <- 1:4
makes it succeed, but then I have too many ticks on my X axis. I want
exactly 4 tickmarks. It would also be nicer if I could name the ticks.
I looked at ?par and Venables&Ripley,
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,
2004 Aug 20
2
R on gentoo amd64 (gcc 3.3.3) is unstable
dear wizards:
FYI: gentoo is a linux meta distribution, which compiles all packages.
Once running, gentoo is stable on most applications. (it has some
problems with system tools, such as grub.) the compiler is gcc 3.3.3.
I do not expect anyone to track down for me why R fails on the gentoo
amd64+gcc3.3.3 system, but I thought that it would be good to put it on
the record to save
2004 Aug 20
2
R on gentoo amd64 (gcc 3.3.3) is unstable
dear wizards:
FYI: gentoo is a linux meta distribution, which compiles all packages.
Once running, gentoo is stable on most applications. (it has some
problems with system tools, such as grub.) the compiler is gcc 3.3.3.
I do not expect anyone to track down for me why R fails on the gentoo
amd64+gcc3.3.3 system, but I thought that it would be good to put it on
the record to save
2007 Feb 13
1
errors when installing new packages
Dear all,
I met a problem when installing new packages on R, my system is linux
fedora 6.0, the following is output. please help me. Thanks.
> install.packages('lars')
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
trying URL 'http://www.stathy.com/cran/src/contrib/lars_0.9-5.tar.gz'
Content type 'application/x-tar' length
2002 Feb 04
1
delcol() of Splus
Dear all,
There is this delcol() function in Splus. It is a support function for
drop1.lm(). But it seems it disappears from R. Could some one tell me
whether there is any equivalent function of delcol() in R or is there any
other way that I can implement its functionality? Your help is highly
appreciated!!!
Regards,
-Ji
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
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
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 May 09
2
big quasi-fixed effects OLS model
dear R experts---now I have a case where I want to estimate very large
regression models with many fixed effects---not just the mean type, but
cross-fixed effects---years, months, locations, firms. Many millions of
observations, a few thousand variables (most of these variables are
interaction fixed effects). could someone please point me to packages, if
any, that would help me estimate such
2004 Nov 21
1
sas vs. R
SAS
* better manuals.
* tech support for most universities contracted into the price, thus
for researchers.
* batch orientation. if you have to handle data sets that are as large
as your memory, SAS generally does it better. It seems to be an
"n-pass design." Years ago, when memory was expensive, I could not use
S/R even for simple problems. Just a few simple operations, and I
2004 Jul 07
3
fast NA elimination ?
dear R wizards: an operation I execute often is the deletion of all
observations (in a matrix or data set) that have at least one NA. (I
now need this operation for kde2d, because its internal quantile call
complains; could this be considered a buglet?) usually, my data sets
are small enough for speed not to matter, and there I do not care
whether my method is pretty inefficient (ok, I
2010 Apr 29
1
lm() with non-linear coefficients constraints? --- nls?
dear R experts---quick question. I need to estimate a model that looks like
y = (b*T+d*T^3) + (1-b-3*d*T^2)*x + (3*d*T)*x^2 + (-d)*x^3
I only have three parameters. Is nls() the right tool for the job, or is
there something faster/better?
/iaw
----
Ivo Welch (ivo.welch@brown.edu, ivo.welch@gmail.com)
[[alternative HTML version deleted]]
2010 Aug 20
1
strange behavior of ifelse with factors
Dear R experts: this is probably correct behavior, but I do want to
point out that it is unexpected to someone not too well versed:
> test=factor("A","B","C","A")
> ifelse(test=="A", as.factor("A"), test)
[1] 1 2 3 1
ok, my factor was just coerced into integers, even though I have a
logical vector as my condition and factors as
2010 Nov 03
1
Rd installation (not markup language) primer?
I have a set of functions that I always load on startup. for example,
there is my now infamous "is.defined()" function.
I would like to add some documentation for these functions, so that I can do a
?is.defined
inside R. The documentation tells me how to mark up Rd files is very
good, but I wonder how one installs them for access by the R
executable (on OSX for me). Do I drop