search for: infelicities

Dear list, Please find below an example of odd behaviour of the by function. It occurs both under GNU/Linux R 2.6.2 and Windows R 2.7.0alpha. Respective sessionInfo()'s are given below. I hope I do not overlook anything. testFactor <- factor(sample(LETTERS[1:6], size = 42, replace = TRUE)) testMatrix <- matrix(rnorm(42 * 6), nrow = 42) testDf <- as.data.frame(testMatrix) by(data

Hello: sort(c('A', 'b', 'C')) seems to produce different answers in R interactive than in "R CMD check", at least under both Fedora 13 and Windows 7 with Windows 7 sessionInfo() copied below: In interactive, the result is c('A', 'b', 'C'); with R CMD check, it is c('A', 'C', 'b'). This produced

format(c(1:2, NA)) gives the last value as "NA" rather than preserving it as NA, even if na.encode = FALSE (which does the 'expected' thing for character vectors, but not numeric vectors). This was already brought up in 2008 in https://bugs.r-project.org/show_bug.cgi?id=12318 where Gregor Gorjanc pointed out the issue. Documentation was added and the bug closed as

If I do > example(lm) ... > mycoef <- function(object, ...) UseMethod("coef", object) > mycoef(lm.D9) Error in mycoef(lm.D9) : no applicable method for "coef" which is pretty surprising, as coef has a default method. After a bit of digging, this comes from do_usemethod having defenv = environment where the generic was defined */ defenv =

utils::citation() offers the option auto=(NULL|TRUE) to obtain the citations for a package from the package DESCRIPTION file or a CITATION file, as described below: |auto| a logical indicating whether the default citation auto-generated from the package 'DESCRIPTION' metadata should be used or not, or |NULL| (default), indicating that a 'CITATION' file is used if it exists, or

In theory, dlnorm(x, ...) == dnorm(log(x), ...)/x, x>0. Unfortunately, when sd=0, dlnorm and plnorm return NaN, while dnorm returns (if(x != mean)0 else Inf) and pnorm returns (if(x<mean)0 else 1). [A numerical optimization, maxLik{maxLik}, reported the NaNs for me.] help('dlnorm') says, "dlnorm is calculated from the definition (in ?Details?). [pqr]lnorm are based on the

Dear list, "+" (and "-") being defined for difftime class, I expected mean() to return something sensible. This is only half-true : > mean(c(1:5, 5:1),na.rm=TRUE) [1] 3 > mean(as.difftime(c(1:5, 5:1),unit="mins"),na.rm=TRUE) Time difference of 3 mins Fine so far. However : > mean(c(1:5, NA,5:1),na.rm=TRUE) [1] 3 > mean(as.difftime(c(1:5,

Hello, The main reason for resetting the tagbuf in `print.default()` and other entry points to the print routine is that it is currently not reset on exit. Creating a context to reset it on exit to its last value might work. This should be done in the entry points rather than in print-value-rec though, since callers of the latter might write to the tagbuf. Another solution to this problem is

In using cor(data.frame), it is annoying that you have to explicitly filter out non-numeric columns, and when you don't, the error message is misleading: > cor(iris) Error in cor(iris) : missing observations in cov/cor In addition: Warning message: In cor(iris) : NAs introduced by coercion It would be nicer if stats:::cor() did the equivalent *itself* of the following for a data.frame:

In a paper I'm writing using Sweave, I make use of lattice graphics, but don't want to explicitly show (or explain) in the article text the print() wrapper I need in code chunks for the graphs to appear. I can solve this by including each chunk twice, with different options, as in <<ortho-xyplot1-code, keep.source=TRUE, eval=FALSE>>= library(nlme) library(lattice)

Currently S3 objects nested in generic vectors cause the tag buffer to be reset.? This feels sub-optimal for those objects that don't have a print method: > list(a=list(b='hello')) $a $a$b???????????????? ### <<<< notice "$a$b" [1] "hello" > list(a=structure(list(b='hello'), class='world')) $a $b?????????????????? ###

Dear List, I have had problems inserting some (not all !) figures via odfWeave (using print(someLatticeFunction)...). The figure was correctly displayed in a R device window but the resulting ODF document displayed the correct space for the figure and an empty frame with a "broken image" icon and a "read error" mention. Exploration of the odf (.odt, in my case) file showed

Hi all, I'd like to discuss a infelicity/possible bug with gsub. Take the following function: f <- function(x) { gsub("\u{A0}", " ", gsub(" ", "\u{A0}", x)) } As you might expect, in utf-8 locales it is idempotent: Sys.setlocale("LC_ALL", "UTF-8") f("x y") # [1] "x y" But in the C locale it is not:

Hi In the following, the graph I see on the screen and the .png output coincide. However, in the .pdf file, the fonts seem to be scaled fairly larger, resulting in the label for the top legend disappearing. Is this an infelicity or bug, or is there something I've missed? More generally, how do I control the size of fonts used in legends and axis labels? library(car) library(ggplot2) qp

On Fri, 12 Mar 2004 11:44:14 -0500, "Roger D. Peng" <rpeng@jhsph.edu> wrote : >Funny, it works for me on R-patched > > > f <- function(a) { return(log(a)) } > > f("A") >Error in log(x) : Non-numeric argument to mathematical function > > traceback() >2: log(a) >1: f("A") > > try(f("A")) >Error in log(x) :

I've discovered an infelicity (I guess) in qbeta(): it's not a bug, since there's a clear warning about lack of convergence of the numerical algorithm ("full precision may not have been achieved"). I can work around this, but I'm curious why it happens and whether there's a better workaround -- it doesn't seem to be in a particularly extreme corner of parameter

Hi, I have sparse (tridiagonal) matrices, and I use the Matrix package for handling them. For certain computations, I need to either set the first row to zero, or double the last row. I find that neither operation preserves sparsity, eg > m <- Diagonal(5) > m 5 x 5 diagonal matrix of class "ddiMatrix" [,1] [,2] [,3] [,4] [,5] [1,] 1 . . . . [2,] . 1

On 7/19/2015 3:50 AM, peter dalgaard wrote: >> For some, but not allI repositories I get the error message below: >> >Error in install.packages(update[instlib == l, "Package"], l, contriburl = >> >contriburl, : >> > specifying 'contriburl' or 'available' requires a single type, not type = >> >"both" >> >

Hi useRs, A recent coding infelicity along these lines yielded a corrupt data frame. foo <- matrix(1:12, nrow = 3) bar <- data.frame(foo) bar$NewCol <- foo[foo[, 1] == 4, 4] bar lapply(bar, length) > foo <- matrix(1:12, nrow = 3) > bar <- data.frame(foo) > bar$NewCol <- foo[foo[, 1] == 4, 4] > bar X1 X2 X3 X4 NewCol 1 1 4 7 10 <NA> 2 2 5 8 11

Full_Name: Anne CORI Version: 2.6.1 OS: windows Submission from: (NULL) (134.157.220.19) let A be a mtrix with n lines and p columns, p>36 ; matplot(A) will only draw the plot of the first 36 columns of A. This is due to a bug in the definition of pch in the function : pch <- c(paste(c(1:9, 0)), letters)[1:k] should be replaced by pch <- c(paste(c(1:9, 0)), letters) I hope this