similar to: Correct placement of .tex files in an R package

Hi, This is (presumably?) a bug in R 1.7.0 under Windows. I have not tested it on other systems. Attachment of packages is case sensitive but not library(), resulting in multiple loadings of the same package if the library name is spelled differently. The following example loads the `tools' package, once as `tools' and once as `Tools'. This behavior is the same with all packages and

In previous versions of R (at least in 1.5.1, I think), my practice was not to include an INDEX file in the package. R CMD check did not complain and an INDEX was created for me when I use R CMD build. At least, this is how I remember it. I thought that this was a good way to behave since it ensured that my INDEX was automatically kept up to date by R, without me having to worry about what

There is a bug in all.equal.character: > all.equal.character(c("A", "B", "C"), c("A", "B", "C")) [1] TRUE > all.equal.character(c("A", "B", "C"), c("A", "B", NA)) Error in sum(out) : Object "out" not found > traceback() 3: sum(out) 2: paste("`is.NA' value

The inconsistency is that you use $<- to set the column, then [[<- to change it. Had you tried to set the column by x[[1]] <- as.character(x[[1]]) you would have seen the problem immediately (it does not work as you would have intended). If you want to be sure to turn off conversion to factor, you need to set the column to class "AsIs". My belief is that will behave

The result of rowsum() in R doesn't have the dimnames I'd expect, e.g.: > rowsum(matrix(1:12, 3,4), c("Y","X","Y")) [,1] [,2] [,3] [,4] 1 2 5 8 11 2 4 10 16 22 whereas S-Plus gives the more useful result: [,1] [,2] [,3] [,4] X 2 5 8 11 Y 4 10 16 22 This is because R's rowsum() code gives the

Thanks to Henrik Bengtsson, Martin Maechler, Brian Ripley, Jeff Gentry and David Brahm for taking the time to answer my questions about INDEX files in R packages. My key take-aways were: 1) All of this will be changing a lot in R 1.7.0-to-be, so don't sweat the details. 2) Many people run R CMD build before they run R CMD check. I found this quite surprising. I did not realize that R

As cool and wonderful as the package checking tools for R are, I sometimes am stymied when trying to track down a problem. For example, I occasionally see error messages when running R CMD check like the following: [...] * checking Rd files ... OK * checking for undocumented objects ... ERROR * in parse(file, n, text, prompt) : syntax error on line 932 * in undoc(dir =

Hi, I often have large dataframes with many variables and many NA's, from which I would like to subset out some rows. Here is a toy example: > x <- data.frame(a = c("x", "y", "z"), b = c(1, NA, 5)) > x a b 1 x 1 2 y NA 3 z 5 I realize that, if I know the values in x$b that I want to subset, things are easy: > x[x$b %in% c(1),] a b 1 x 1

The help page for library says that: package, help: name or character string giving the name of a package. Yet, I don't seem to be able to use a string variable here. > version _ platform sparc-sun-solaris2.6 arch sparc os solaris2.6 system sparc, solaris2.6 status major 1

Hi, In 1.4.1, I was able to create extra "empty" rows in a dataframe as so: > x <- data.frame(a = letters[1:3], b = 1:3) > x a b 1 a 1 2 b 2 3 c 3 > x[4,] a b NA NA NA > rbind(x, x[4,]) a b 1 a 1 2 b 2 3 c 3 NA NA NA > R.version _ platform sparc-sun-solaris2.6 arch sparc os solaris2.6

I am seeing some strange behavior using save on a character vector containing a slash. If this is a bug, I will happily submit it (as a single entry! ;-) ) to r-bugs. Here is an example involving "VIA\B". > version _ platform sparc-sun-solaris2.6 arch sparc os solaris2.6 system sparc, solaris2.6 status

Although the documentation is somewhat sketchy, I() can be used to create objects of class AsIs: > I("a") [1] "a" attr(,"class") [1] "AsIs" "character" > I(4) [1] 4 attr(,"class") [1] "AsIs" "numeric" > I(4 + 0i) [1] 4+0i attr(,"class") [1] "AsIs" "complex" > This

In running R CMD check I get an error I can't debug. Would someone please let me know if they spot a syntax error in the code below or if there is a workaround for the parse error? Thanks -Frank Error in parse(file, n, text, prompt) : parse error Error in codoc(package = "Hmisc") : cannot source usages in documentation object 'plsmo' Execution halted * checking for

I am having problems using merge with all = TRUE when one of the dataframes has objects of class POSIXct. If this is a bug, let me know and I will report it to r-bugs. Here is an example: > version _ platform sparc-sun-solaris2.6 arch sparc os solaris2.6 system sparc, solaris2.6 status major 1

The help for options says: echo: logical. Only used in non-interactive mode, when it controls whether input is echoed. Command-line options `--quiet' and `--slave' set this initially to `FALSE'. I don't think that this is correct for me. Consider the following session: mica|junk> ls test.R mica|junk> cat test.R cat("Why was this command

Hi all, I am building a R package which defines a class. I have overloaded methods for this class using setMethod, and now, when I require my package, I get diagnostic messages. setMethod("[", signature(x = "portfolio"), function(x, i, j, ...) { # ... }) > require(portfolio) Loading required package: portfolio [... loading other required packages ...] Creating a new

Almost all of the heavy crunching I do in R is like: > for(i in long.list){ + do.something(i) + } > collect.results() Since all the invocations of do.something are independent of one another, there is no reason that I can't run them in parallel. Since my machine has four processors, a natural way to do this is to divide up long.list into 4 pieces and then start 4 jobs, each of which

It turns out that my web host doesn't allow direct links. Try going to http://www.warnes.net/downloads or getting it from the sourceforge snippet library https://sourceforge.net/snippet/detail.php?type=snippet&id=101149. -Greg > -----Original Message----- > From: Warnes, Gregory R [mailto:gregory_r_warnes at groton.pfizer.com] > Sent: Monday, May 13, 2002 10:15 AM > To:

Here is an example involving "VIA\B". > version _ platform sparc-sun-solaris2.6 arch sparc os solaris2.6 system sparc, solaris2.6 status major 1 minor 3.0 year 2001 month 06 day 22 language

Typically, when I use strptime with "impossible" dates I get an NA, which is what I expect. > version _ platform sparc-sun-solaris2.6 arch sparc os solaris2.6 system sparc, solaris2.6 status major 1 minor 3.0 year 2001 month 06