Displaying 20 results from an estimated 7000 matches similar to: "Data() and CSV files"
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
2004 Sep 14
1
Re: datalist
Hi,
The following is a cut/paste from http://developer.r-project.org/200update.txt:
...
3) When a package is installed, all the data sets are loaded to see
what they produce. If this is undesirable (because they are
enormous, or depend on other packages that need to be installed
later, ...), add a `datalist' file to the data subdirectory as
described in `Writing R
2005 May 11
7
bug in modulus operator %% (PR#7852)
The following can't be right,
first rw2010:
> 1 %% 0.001
[1] 0.001
Then rw2001:
> 1 %% 0.001
[1] -2.081668e-17
>
and the last seems about right.
--
Kjetil Halvorsen.
Peace is the most effective weapon of mass construction.
-- Mahdi Elmandjra
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Checked by AVG Anti-Virus.
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)
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
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
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 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,
2005 Oct 20
3
read.table error upon package installation (PR#8230)
Upon upgrading to R 2.2.0 on my Windows box, I found that one of my
packages no longer compiled, giving this error:
Error in read.table(zfile, header =3D TRUE) :
more columns than column names
Execution halted
After removing every line of code from my package and still not being
able to compile it, I found the error to be related to a .txt file in my
data directory. I reduced my data file to a
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
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,
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
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
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 Jun 29
2
write.csv suggestion
Hello all,
I had some trouble recently with write.csv because I couldn't change one
of the default options. A quick view of the code showed that the
function was not defined in the most optimal way.
Currently,
write.csv <- function (..., col.names = NA, sep = ",", qmethod =
"double")
write.table(..., col.names = NA, sep = ",", qmethod = "double")
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 <-
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
2010 Jun 29
2
POSIXlt matching bug
I came across the below mis-feature/bug using match with POSIXlt objects
(from strptime) in R 2.11.1 (though this appears to be an old issue).
> x <- as.POSIXlt(Sys.Date())
> table <- as.POSIXlt(Sys.Date()+0:5)
> length(x)
[1] 1
> x %in% table # I expect TRUE
[1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
> match(x, table) # I expect 1
[1] NA NA NA NA NA NA NA NA
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 =
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