similar to: Is there a way to specify drop=FALSE as the global default?

(Under 2.2.0, Mac) I have been unable to reduce this to a simple case, so I'll include my full code, and my intentions. The problem I'm trying to solve is that while many defaults (eg. na.rm=F, drop=T) make sense for interactive programming, they tend to be a bit of a pain when developing a package. For example, I often forget to use drop=FALSE, only test with multiple columns and then

Dear Community, This is largely a repost with some new information. I'm interested in developing a package that could ease the command-line learning curve for new users. It would provide more detailed syntax checking and commentary as feedback. It would try to anticipate common new-user errors, and provide feedback to help correct them. As a trivial example, instead of >

Hi, When I use the following command, A (a directory) will be created in B. But I actually want to cp the content of A to B. rsync -az A B Is there a way to cp the content of A to B? Thanks! -- Regards, Peng

Hi, I have llvm installed through MacPorts. But I don't see macports installed. Are there supposed to be manpages of commands like lli installed? -- Regards, Peng

length(unique(c(1,2,2)))==length(c(1,2,2)) I use the above test to test if all the elements in a vector are unique. But I'm wondering if there is a convenient function to do so in R library.

I don't find a function to print a string to file. Would somebody let me know what function I should use?

Hello, When plotting a barchart with ggplot it drops the levels of the factor for which no counts are available. For example: library(ggplot) mtcars$cyl<-factor(mtcars$cyl) ggplot(mtcars[!mtcars$cyl==4,], aes(cyl))+geom_bar() levels(mtcars[!mtcars$cyl==4,]) This shows my problem. Because no counts are available for factorlevel '4', the label 4 dissapears from the plot. However, I

Hi, I am wondering if some experienced users would help put the ready-to-run code of the examples in the manuals. It would help new users learn R faster by putting all the examples in an ready-to-run R script file. Can somebody help do so sometime and post the code along with the pdf manuals? http://cran.r-project.org/manuals.html Regards, Peng

I found this paper on ANOVA on unequal error variance. Has this be incorporated to any R package? Is there any textbook that discuss the problem of ANOVA on unequal error variance in general? http://www.jstor.org/stable/2532947?cookieSet=1

I'm trying to select a subset of a dataframe while dropping some factors. While the dataset gets smaller all Factor levels remain and I need to get rid of them. Strangely enough, I am almost certain that the same code on the same data worked OK earlier today - and it is not the first time that I'm not able to replicate earlier results with this command (I know, I might just be going

There are a few version of apply() (e.g., lapply(), sapply()). I'm wondering if there is one that does not return anything but just silently apply a function to the list argument. For example, the plot function is applied to each element in 'alist'. It is redundant to return anything from apply. apply(alist,function(x){ plot each element of alist})

Some examples in the help page are too long to be copied from screen. Could somebody let me know some easy way on how to extract the example to a file so that I can play with them?

Thanks Gabriel and Kevin for your inputs, regarding your points Gabriel, I think Python and Julia do allow multiple sub-assignment, but in-line with my earlier suggestion in response to Duncan to make multiple assignment an environment-level operation (like collapse::%=% currently works), this would not be possible in R. Regarding the [a] <- coolest_function() syntax, yeah it would mean do

Dear list, I want to loop over a list through lapply and at the same time I want to extract some information from the names of the list elements. lapply does not seem to carry the names. Is there anyway to access the names of a list within lapply? Thanks. Jun [[alternative HTML version deleted]]

read.table terminates the program if the input file is empty. Is there way to let the program continue and return me a NULL instead of terminating the program? $ Rscript read_empty.R > read.table("empty_data.txt") Error in read.table("empty_data.txt") : no lines available in input Execution halted $ cat read_empty.R read.table("empty_data.txt") $ cat

Hi, I'm wondering if R provide a vi mode in the command line just like other shells such as bash do. Can somebody let me know? Regards, Peng

Hi all, The function call series genericForPrimitive -> .findBasicFuns -> .findAll happens 4400 times while the GenomicRanges package is loading. Each time .findAll follows a chain of environments to determine that the methods namespace is the only one that holds a variable called .BasicFunsList. This accounts for ~10% of package loading time. I'm sure there is some history to that

FWIW, it's possible to get fairly close to your proposed semantics using the existing metaprogramming facilities in R. I put together a prototype package here to demonstrate: https://github.com/kevinushey/dotty The package exports an object called `.`, with a special `[<-.dot` S3 method which enables destructuring assignments. This means you can write code like: .[nr, nc] <-

> > but doesn't emit optnone and nounwind attributes > s/nounwind/noinline On Mon, Jan 28, 2019 at 11:35 AM Jakub (Kuba) Kuderski < kubakuderski at gmail.com> wrote: > As far as I understand, gllvm doesn't run LTO pipeline or any cross-module > optimization, and the optimization level provided is only used to compile > each Translation Unit separately. > If you

On 12/03/2023 6:07 a.m., Sebastian Martin Krantz wrote: > Thinking more about this, and seeing Kevins examples at > https://github.com/kevinushey/dotty > <https://github.com/kevinushey/dotty>, I think this is the most R-like > way of doing it, > with an additional benefit as it would allow to introduce the useful > data.table semantics DT[, .(a = b, c, d)] to more