similar to: asmode.integer() -- RFC

In nonparametric regression and density estimation, something like \hat{f'}(x) [LaTeX] is very natural. In all S dialects, hat(f') is invalid syntax, and hence one cannot use something like plot(1, main = expression(hat(f'))) I can say something like plot(1, main = expression(widehat(paste(f, "'"))), cex.main = 3) but that (the R code, not the plot result)

----------------------------Original message---------------------------- Date: Fri, 12 Nov 99 11:09:05 EST From: Bill Paterson <BAD305 at ukcc.uky.edu> Subject: SAS to R translator for particular procedures To: R-Help <r-help at stat.math.ethz.ch> X-Mailer: MailBook 98.01.000 Message-Id: <991112.111316.EST.BAD305 at ukcc.uky.edu> MIME-Version:

Short example: > str(d <- data.frame(a = I(letters[1:5]))) `data.frame': 5 obs. of 1 variable: $ a:Class 'AsIs' chr [1:5] "a" "b" "c" "d" ... > str(d[TRUE,,drop = FALSE]) `data.frame': 5 obs. of 1 variable: $ a: chr "a" "b" "c" "d" ... The real problem about this is, that as soon

i) (function(x, ...) length(...))(1) gives 0 in S (plus 3.4) and an error in R. It also gives an error in Splus 5.0r3. So we could well remain as we are... however ii) (function(x, ...) length(...))(1,2) gives 1 in all dialects of S that I have available. So by my `continuation logic', I'd argue that "i)" above should give 0 (and R and S-plus 5.0r3 behave

>>>>> "TL" == Thomas Lumley <thomas@biostat.washington.edu> writes: on Subject: Re: [Rd] Problem with NAs using chisq.test() (PR#748) which I've changed, since it is another bug we are talking about now TL> On Sun, 26 Nov 2000 kjetikj@astro.uio.no wrote: >> Full_Name: Kjetil Kjernsmo .............. .............. TL> However,

In several places, we have the convention that col = NA means `` don't draw '', e.g. for points() or rect(). For col = <vector> this only works when the vector is integer (numeric), but not in other cases. I think this is a bug, even though not in the strict sense, since we don't seem to claim it should work.. Example: plot(1:10, col = c(1:4,NA,NA,4:1)) ## fine

A colleague has a dozen of excel sheets and also expects to get updates regularly. He could open these in M$-Excel and export as *.csv manually, "bring back to Unix" and then read into R. Of course there must be options to start programming this in something like visual basic, but we wouldn't to really want to... We also know that probably Gnumeric could do the job (since the xls

I would want to know if it's possible to plot two histograms on the same graphic in order to compare the bins one to one, like a Excel graphic. If it is possible can you help me to do it, because I don't know the exact R-commands. Thanks for your help Damiano > > >Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/ >Seminar fuer Statistik,

Are there any S-Plus or R libraries/packages that do Finite Mixture Analysis following the algorithms similar to those implemented in Geoffrey MacLachlan's EMMIX program? Thanks. Dr. Marc R. Feldesman email: feldesmanm at pdx.edu email: feldesman at attglobal.net fax: 503-725-3905 "Don't know where I'm going. Don't like where I've been. There may be no exit. But

>>>>> "BDR" == Prof Brian D Ripley <ripley@stats.ox.ac.uk> writes: BDR> On Mon, 22 May 2000 berwin@maths.uwa.edu.au wrote: >> Dear all, >> >> I was playing around with some C-code that I dynamically linked to R >> and noticed the following inconsistency: > > dat <- matrix(1,3,3) > >

This is something between a question and a bug report. {sometimes one should first ask on R-help before sending to R-bugs....} I wanted to plot (.) a formula with "..." ## Works : e0 <- expression(T(x[1],...x[n])*", "*N[1] == 101) # works ok plot(1, main = e0) ## Now, need substitute, to replace with value of variableThis works nn <- 102 (e1 <-

In S-plus (5.1), > cbind(data.frame(x=1,y=2), data.frame(x=4,u=3)) x y x1 u 1 1 2 4 3 whereas in R, the 3rd name is "x", the same as the 1st one. I think R should behave the same as S+5.1.. Martin Maechler <maechler@stat.math.ethz.ch> http://stat.ethz.ch/~maechler/ Seminar fuer Statistik, ETH-Zentrum LEO D10 Leonhardstr. 27 ETH (Federal Inst. Technology) 8092 Zurich

A short "private" discussion revealed that several people desire to get a prefix in the "subject:"s of R-devel mailings. I'd propose to set "[R-d]" as I've done it (manually, this time!) above. Unless I hear load protests, I'll set this. your mailing list maintainer: Martin Maechler

MM> I've sent two bug reports that both haven't been forwarded to R-devel MM> and haven't should up at the jitterbug repository. MM> ?? MM> Martin Well, actually only one [the other went to R-core alone] Here it is : From: Martin Maechler <maechler@sophie> To: R-bugs Subject: plot math - segfault and "frac", "^" bug(s).. Date: 8

Hello Everybody, I have a problem with the output of lm. In fact, when I compare the R output and the Splus output, the results appears to be different : I have a dataframe with 5 factors , 16 rows and a response. First, I tried to fit this response to a linear model : lm(rep~(A+B+C+D+E),data). The results beetween SPlus and R are different. In a second time, I tried a new fit :

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I don't have time now to investigate myself, and I'm not feeling like deciding myself if the following is a bug: myplot <- function(dat, cex = 1.2, ...) { if(!is.data.frame(dat <- as.data.frame(dat))) stop("`dat' must be a data.frame") if(any(is.na(match(c("x","y"), names(dat))))) stop("`dat' must have a `x' and a

Hallo, I'm looking for a "sunflower" plot. I noticed the Splus function "p.sunflowers" (Andreas Ruckstuhl, Werner Stahel, Martin Maechler, Tim Hesterberg) don't work... If its not available I would port this function... Thanks for 1 answer P *************************************************************************** P.Malewski Tel.: 0531 500965 Maschplatz 8

The "bug" is that it doesn't print anything; one might argue that this is not a bug, since such an array *is* empty, but I don't buy that argument. It *does* print if #{columns} (= last dimension) > 0 : > array(NA,dim=c(2,0)) > array(NA,dim=c(2,1,0)) > array(NA,dim=c(0,2)) [,1] [,2] > array(NA,dim=c(0,2,1)) , , 1 [,1] [,2] >

getenv(<varname>) currently returns "" if the <varname> is undefined. However, if <varname> is defined but empty, getenv(<varname>) still only returns "". I think this is quite unfortunate but consistent with the prototype. --- I'd propose to change the current behavior. Something which should be pretty back compatible would for the first