similar to: POSIXlt matching bug

Displaying 20 results from an estimated 6000 matches similar to: "POSIXlt matching bug"

2008 Sep 12
1
match and incomparables
Hello, I was playing around with the newly implemented 'incomparables' argument in 'match' and realized the argument does not behave anything like I expected. Can someone explain what is going on here? Sorry if I'm misreading the documentation. > match(1:3, 1:3, incomparables=1) [1] NA 2 3 # This seems right, the 1 in 'x' is 'incomparable' >
2008 Jul 29
3
sapply(Date, is.numeric)
FYI, I've tried posting the below message twice to the bug tracking system, once by email (below), and the second time 5 days later directly to the bugs.r-project.org website. As far as I can tell, the bug tracking system hasn't picked this up. Also it looks like the latest "incoming" bug is dated 25 May 2008, so perhaps others are having difficulty as well. (cc: r-bugs)
2010 Jun 23
1
NAs and weighted.mean
R-developers, In version R 2.11.0, weighted.mean was changed such that: > weighted.mean(NA, na.rm=TRUE) [1] 0 rather than NaN as in previous versions of R. I see a note in the NEWS file indicates that weighted.mean was changed "so an infinite value with zero weight does not force an NaN result." In case the side effect of returning 0 rather than NaN in this case was unintentional,
2008 Apr 28
2
time zone conversion
Hello, I'm trying to convert times in the EST/EDT (New York) format to times in the GMT/BST (London) and UTC+9 format (Tokyo). That is, if I know what time it is in New York, what is local time in London and Tokyo? Ex: Here's the conversion from New York EST/EDT time to London's GMT/BST time zone for three days in 2007. Note that the US and London change to daylight savings on
2005 Jan 12
2
?"=" (Windows) (PR#7504)
?"=", ?"==", ?"!=", ?">=", and ?"<=" sends me to the documentation for ?help on Windows, while returning the correct documentation on Linux. Robert > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor
2010 Jul 06
1
with(x, Recall()) Crash
R-devel, I discovered a segfault in my R code that boiled down to my incorrect use of the Recall() function embedded within a with() function. Since segfaults are generally bad things, even when it's the user's fault for writing nonsense code, I thought I'd pass along the offending code. I've tested the crash on R 2.11.1 (on Linux and Mac), but not in devel versions of R. HTH,
2006 May 22
3
Wishlist: Vignettes on CRAN
I was recently browsing through CRAN's Finance task view to remind myself of the publicly available packages relevant to my work. As the reference manuals are all online, I am able to flip through the available functions to get an idea of the package's scope before downloading. That said, many authors have taken the time to additionally provide a useful vignette which provides a better
2005 Jan 27
3
Indexing Lists and Partial Matching
I was unaware until recently that partial matching was used to index data frames and lists. This is now causing a great deal of problems in my code as I sometimes index a list without knowing what elements it contains, expecting a NULL if the column does not exist. However, if partial matching is used, sometimes R will return an object I do not want. My question, is there an easy way of getting
2005 Jan 10
1
new("call") problem (PR#7490)
I have found a solution to the new("call") problem that I believe produces the correct behavior for the default call object, and am also reclassifying this as a bug, as I believe the current behavior to be incorrect. Recap, the following error occurs: > new("call") Error in print("<undef>"()) : couldn't find function "<undef>" It looks
2007 May 25
2
File path expansion
R-Help, I discovered a "mis-feature" is ghostscript, which is used by the bitmap function. It seems that specifying file names in the form "~/abc.png" rather than "/home/directory/abc.png" causes my GS to crash when I open the bitmap device on my Linux box. The easiest solution would seem to be to intercept any file names in the form "~/abc.png" and replace
2006 Nov 29
1
Removing terms from formula
R-help, Given a simple linear model, say lm(x ~ y + z), I would like to remove model terms that are factors with only one level. Thus, if 'z' were a factor with only one level, lm(x ~ y + z) becomes lm(x ~ y + 1). Likewise, if both 'y' and 'z' are one-level factors, then the resulting calculation is simply lm(x ~ 1). Unfortunately, I have not been able to come up with an
2005 Feb 28
2
Changing function arguments to NULL
I'm trying to build a recursive set of functions that take a set of arguments, change some of the arguments and recursively call the same (or different) function. For example here's a stupid recursive counting function that prints back all integers from x to 0 (and ignores arguments y and z) cnt <- function(x, y, z) { stopifnot(is.numeric(x)) print (x) recursionFUN <-
2005 Jan 05
2
Rcmd check Error help
R-help, I'm the primary developer for an increasingly large R package with over three thousand lines of code. Unfortunately, do the complexity of the code, I sometimes am required to change several interoperating parts of the package before testing for bugs and performance. And sometimes unnoticed syntax errors slip in that cause Rcmd check / INSTALL to fail with such messages as: Error in
2006 Oct 23
4
Changing function arguments
R-Developers, I'm looking for some help computing on the R language. I'm hoping to write a function that parses a language or expression object and returns another expression with all instances of certain argument of a given function altered. For instance, say I would like my function, myFun to take an expression and whenever the argument 'x' appears within the function FUN inside
2005 Jan 24
6
Very Long Expressions
Greetings, I'm having some difficulties with evaluating very long expressions (Windows/Linux 2.0.1), as seen below, and would greatly appreciate any help, thoughts or work arounds. Let's say that I wanted to see what I would get if I added 1 to itself 498 times. One way of doing this would be to evaluate the expression 1+1+1+... > eval(parse(text = paste(rep(1, 498), collapse =
2005 Apr 22
3
as.data.frame: Error in "names<-.default" (PR#7808)
Hello, I found a potential problem in R 2.1.0 (and R 2.0.1) I expect that > tmp <- FUN(x1, x2, x3, x4) > as.data.frame(tmp) is the same as > as.data.frame(FUN(x1, x2, x3, x4)) since the tmp variable in this case is unnecessary. However, below I will demonstrate that under an odd set of conditions, I can correctly perform as.data.frame(tmp), but not as.data.frame(FUN(x1, x2, x3,
2006 Sep 29
1
Plotting text with lattice
Hello, I've decided to take the leap and try my hand at the lattice package, though I am getting stuck at what one might consider a trivial problem, plotting text at a point in a graph. Apologies in advance if (that) I'm missing something extremely basic. Consider in base graphics: > plot(1:10) > text(2, 4, "Text") In the above you will see text centered at the point (2,
2008 May 16
1
var/sd and NAs in R2.7.0
Hello all, I just upgraded to R 2.7.0 and found that the behavior of 'var' and 'sd' have changed in the presence NAs (this wasn't explicit in the NEWS file, though I see it probably has to do with the change for cor/cov). Anyway, I just want to make sure that it was intentional to produce an error when there was all NAs and na.rm=TRUE, rather than returning an NA (like R
2005 Jan 07
1
Creating unary operators
Is it correct (by its lack of mention in the R-Language Definition Manual) that it is impossible to create a user-defined unary operator? Ex: (This doesn't work, but it's an example of what I'm looking for) > "%PLUSONE%" <- function(x) x + 1 > %PLUSONE% 2 [1] 3 And if the above is impossible, am I limited to only the + - ~ ! unary operators for overloading? On
2006 Sep 20
1
seq.Date not accepting NULL length.out (PR#9239)
There seems to be a bug in seq.Date such that it will not allow the user to pass in length.out =3D NULL, despite the fact that this is the = default argument. For example: > dt1 <- as.Date("2004-12-31") > dt2 <- as.Date("2005-12-31") > seq.Date(dt1, dt2, length.out =3D NULL, by =3D "month") Error in seq.Date(dt1, dt2, length.out =3D NULL, by =3D