similar to: Rtools and things dependent on it

Avi , Your question is not dumb. Let me ask a more fundamental question. What is R tools, what does it do, and how is it used. From time to time, I receive a message when I down load a package saying I need R tools. When I receive the message, I don?t know what I should do, other than down load R tools. John John David Sorkin M.D., Ph.D. Professor of Medicine Chief, Biostatistics and Informatics

On 2/23/24 16:28, Sorkin, John wrote: > David, > My apologies regarding the format of my email. I am replying using my > iPhone, and I can?t find a way to switch from what I suspect is html > to txt format. > The link you sent told me that R tools allows compilation of code. It's specifically designed to provide the code tools missing in Windows that would other wise have

On 2/23/24 14:34, avi.e.gross at gmail.com wrote: > This may be a dumb question and the answer may make me feel dumber. > > I have had trouble for years with R packages wanting Rtools on my machine > and not being able to use it. Many packages are fine as binaries are > available. I have loaded Rtools and probably need to change my PATH or > something. I suppose making sure

David, I greatly appreciate the explanation you gave regarding R tools providing tools available in Linux distros, but not found in Windows. (I am using a windows system). Does this mean that Linux users don't need to use R tools when they want to compile R code? Additionally, thank you for the information about what I should read. I will look at the material again, and hopefully things the

I have also had difficulty running R in RStudio. Has anyone else had problems? It will be a shame if we need to abandon R Studio. It is a very good IDE. John John David Sorkin M.D., Ph.D. Professor of Medicine Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology and Geriatric Medicine Baltimore VA Medical Center 10 North Greene

On 4/6/23 03:49, Steven Yen wrote: > The RStudio list generally does not respond to free version users. I was hoping someone one this (R) list would be kind enough to help me. I don't think that is true. It is perhaps true that you cannot get personalized help from employed staff, but you can certainly submit to the Q&A forum. -- David > > Steven from iPhone > >>

Data.frame is returned by SQL query. It does have column names. In the function, I make small changes to some columns. Something like: Myquery <- ?SELECT date, price, stock FROM stocktab WHERE stock = ?ABC? AND date > ?2025-01-01?;? Prices <- dbGetQuery(con, myquery) SetDT(Prices) Prices[, date = as.Date(date)] R CMD check say ?no visible binding for global variable ?date?? Sent

There you go, once again helping strengthen ;) John Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ From: R-help <r-help-bounces at r-project.org> on behalf of avi.e.gross at gmail.com <avi.e.gross at gmail.com> Sent: Tuesday, January 28, 2025 12:01:25 AM To: 'Naresh Gurbuxani' <naresh_gurbuxani at hotmail.com>; r-help at r-project.org

Naresh, I am not sure how you are creating your data.frame so it has no, I think, column names. There are two scenarios including one where it is not really a valid data.frame and one where it can be handled before any other use as shown below. If it cannot be used, you might need to modify how your SQL or the function you call creates it so it includes either names it chooses or that you supply.

?s 05:07 de 27/11/2023, Neha gupta escreveu: > Hello, I want to download a package and it gives me the error: > > WARNING: Rtools is required to build R packages, but no version of > Rtools compatible with R 4.2.0 was found. (Only the following > incompatible version(s) of Rtools were found: 4.3.5550) > > Please download and install Rtools 4.2 from >

I am new to this thread. At the risk of presenting something that has been shown before, below I demonstrate how a column in a data frame can be dropped using a wild card, i.e. a column whose name starts with "th" using nothing more than base r functions and base R syntax. While additions to R such as tidyverse can be very helpful, many things that they do can be accomplished simply

Again, John, we are comparing different designs in languages that are often decades old and partially retrofitted selectively over the years. Is it poor form to use global variables? Many think so. Discussions have been had on how to use variables hidden in various ways that are not global, such as within a package. But note R still has global assignment operators like <<- and its partner

Hello Avi, while something like d$something <- ... may seem like you're directly modifying the data it does not actually do so. Most R objects try to be immutable, that is, the object may not change after creation. This guarantees that if you have a binding for same object the object won't change sneakily. There is a data structure that is in fact mutable which are environments. For

Richard, A slight addition to your code shows an important aspect of R, local vs. global variables: x <- 137 f <- function () { a <- x x <- 42 b <- x list(a=a, b=b) } f() print(x) ________________________________________ From: R-help <r-help-bounces at r-project.org> on behalf of Richard O'Keefe <raoknz at gmail.com> Sent: Sunday,

Richard, I sent my prior email too quickly: A slight addition to your code shows an important aspect of R, local vs. global variables: x <- 137 f <- function () { a <- x x <- 42 b <- x list(a=a, b=b) } f() print(x) When run the program produces the following: > x <- 137 > f <- function () { + a <- x + x <- 42 +

Hi, If I am not mistaken, all Rtools 4.2 (and 4.3) revisions have the same ARP [1] entries, i.e. all report version 4.2.0.1 (or 4.3.0.1). This makes it difficult to determine the installed version (is it possible to determine the installed revision?) and impossible for tools like winget [2] to update Rtools to the latest revision, AFAICT. Would it be possible to track the version in the

Dear listers, I have update to rtools43 and, using R 4.2.3 I have been surprised not to be able to compile packages needing compilation when updating. Looks like the path given in gcc? -I"C:/PROGRA~1/R/R-42~1.3/include" -DNDEBUG -DNTIMER -I./SuiteSparse_config -DUSE_FC_LEN_T -I"C:/rtools42/x86_64-w64-mingw32.static.posix/include"???? -O2 -Wall? -std=gnu99 -mfpmath=sse

?s 07:36 de 27/01/2023, Ivan Krylov escreveu: > On Fri, 27 Jan 2023 13:01:39 +0530 > Deepayan Sarkar <deepayan.sarkar at gmail.com> wrote: > >> From looking at the headers in John Sorkin's mail, my guess is that he >> just replied to the other thread rather than starting a fresh email, >> and in his attempts to hide that, was outsmarted by Outlook. > >

I wonder if the real confusino is not R's scope rules? (begin .) is not Lisp, it's Scheme (a major Lisp dialect), and in Scheme, (begin (define x ...) (define y ...) ...) declares variables x and y that are local to the (begin ...) form, just like Algol 68. That's weirdness 1. Javascript had a similar weirdness, when the ECMAscript process eventually addressed. But the real

Although I owe thanks to Ramus and Ivan, I still do not know how to write and "advanced" function. My most recent try (after looking at the material Ramus and Ivan set) still does not work. I am trying to run the lm function on two different formulae: 1) y~x, 2) y~x+z Any corrections would be appreciated! Thank you, John doit <- function(x){ ds <- deparse(substitute(x))