similar to: Fix documentation about <- and = differences

The documentation (help("Syntax")) gives the operator precedence of the assignment operators and help, from highest to lowest, as: ?<- <<-? assignment (right to left) ?=? assignment (right to left) ??? help (unary and binary) If I understand correctly this implies that `a = b ? c` and `a <- b ? c` should parse

Hi LLVM devs, The performance of C++ std::sort comes from being able to inline the comparator. For a JIT generated data type, using the comparator as a function call from std::sort may not be ideal. So, i was wondering how can we make a JIT-sort which is as good as statically compiled std::sort with comparator inlined. What is the recommended way to pass a an existing function like std::sort into

I have a long equation that I need to break in the R documentation of a package or it trails off the right hand side of the page. Here's the formula: \deqn{Cov(r_{ist}, r_{iuv})= [.5\rho_{ist}\rho_{iuv}(\rho_{isu}^2 + \rho_{isv}^2 + \rho_{itu}^2 + \rho_{itv}^2) + \rho_{isu}\rho_{itv}+ \rho_{isv}\rho_{itu}-(\rho_{ist}\rho_{isu}\rho_{isv} + \rho_{its}\rho_{itu}\rho_{itv}) +

Dear, I'm following the r tag on stackoverflow.com, and couldn't but notice there are quite some questions popping up that deal with scoping in relation to custom functions. I grinded my teeth on it already, and I have absolutely no clue what goes wrong. The general pattern is as follows : ff <- function(x){ y <- some_value some_function(y) } > ff(x) Error in eval(expr,

Thanks David! I understand that std::sort doesn't exist without types especially at bytecode layer. What I was thinking was something like the following: Compile std::sort with a thunk function Compare(void*, void*) {rerturn false} into bytecode with an option say noinline and always make the function call or even a simple unoptimized bytecode which guarantees that Compare exists as a

Small suggestion for the documentation: Should the = operator for assignments, described on http://developer.r-project.org/equalAssign.html, now be included in the operator table in doc/manual/R-lang.texi? If so, one possibility could be after lines 1096/7: @item @code{<-} @tab Left assignment, binary @item @code{=} @tab Left assignment, binary Also, where is the best place to send

Hello, certain manipulations of ggplot2 graphs, in particular aligning them, require the function grid:::unit.list(). See e.g. these posts on stackoverflow: http://stackoverflow.com/questions/34032621/element-replacement-in-grid-unit-vector http://stackoverflow.com/questions/32580946/setting-absolute-size-of-facets-in-ggplot2/32583612#32583612 http://stackoverflow.com/a/35823179/4975218 Since

Hi, I’m trying to build the documentation. Running make in /docs, I get the following error: Makefile:44: Makefile.config: No such file or directory make: *** No rule to make target `Makefile.config'. Stop. According to this answer: http://stackoverflow.com/questions/4763381/no-rule-to-make-target-makefile-needed-by-makefile#comment40533198_4908782

Hello dear R users, Recently there has been several fascinating threads on the website stackoverflow <http://stackoverflow.com> regarding the subject of R WorkFlow best practices: - What best practices do you use for programming in R?<http://stackoverflow.com/questions/2258092/what-best-practices-do-you-use-for-programming-in-r> - Workflow for statistical analysis and report

Hi I am seeking to understand why the methods package (to be specific `methods:::.findOrCopyClass` when called by `setIs` when called by `setClass`) emits a warning message such as ` class "SpatialLinesNULL" is defined (with package slot 'rgeos') but no metadata object found to revise subclass information---not exported? Making a copy in package 'minweSpatialNULL `

Thanks David! I am not clear on how to achieve this though. Could you give more info on this? I expect something like this: sort.cc file: bool Compare(void* a, void* b) { return false; } void SortFunc(void* arr, int len) { std::sort(arr, len, &Compare) } $MAGIC_COMMAND sort.cc -o a.llvm a.llvm is a bytecode which can be loaded at runtime in my JIT module and write some code to

Dear R friends, to allow post-mortem debugging In my Rscript based batch jobs I use tryCatch( <R expression>, error = function(e) { dump.frames(to.file = TRUE) }) to write the called frames into a dump file. This is similar to the method recommended in the "Writing R extensions" manual in section 4.2 Debugging R code (page 96):

Recently on stackoverflow following problem came up : http://stackoverflow.com/questions/7103429/all-the-connections-are-in-use-execution-halted/7108799#7108799 A reproducible example: When trying replicate(200,tryCatch(read.table("this.is.no.file"), warning=function(w){print(showConnections());print("warning")})) No connections are shown, but after a number of

Hi, I?m working on a Shiny app for statistical analysis. I ran into this "maximal number of DLLs reached" issue recently because my app requires importing many other packages. I?ve posted my question on stackoverflow (http://stackoverflow.com/questions/36974206/r-maximal-number-of-dlls-reached <http://stackoverflow.com/questions/36974206/r-maximal-number-of-dlls-reached>). I?m

OK, I give up and come grovelling, "Fork" was suggested at 18:23, it's now 22:20 and I have been through 4 different methods, all block with a 2 second delay before returning to dialplan. Here are just some of the examples I have tried, as as per the suggestions, I am closing all possible outputs in the forked process. https://docs.python.org/3.5/library/multiprocessing.html

There's a StackOverflow question https://stackoverflow.com/q/22024082/2554330 that references this text from ?missing: "Currently missing can only be used in the immediate body of the function that defines the argument, not in the body of a nested function or a local call. This may change in the future." Someone pointed out (in https://stackoverflow.com/a/58169498/2554330)

On looking more closely, the purpose of finding the class definition is to update the entry for the new relationship, as the warning message suggests. That requires that the namespace holding the definition be writable. In the case of subclass information, the original namespace is very likely to be locked, if it's not the package currently being loaded. Copying the definition in order to

On Mon, Jul 8, 2019 at 4:39 PM David Blaikie <dblaikie at gmail.com> wrote: > There isn't any magic command for this - you'd have to write some C++ > code/a custom LLVM optimization pass. > > Though, that said - perhaps it should just be a runtime parameter where > you rely on LLVM to inline/optimize things away? You could do some > relatively smaller code

I''m working on Michael Hartl''s ruby on rails tutorial http://ruby.railstutorial.org/ruby-on-rails-tutorial-book#sec-development_tools . I installed Git, updated my OS to 10.8.2 and downloaded XCode 4.5.2. when I type in rvm install 1.9.3 this long thing comes up... Ruby (and needed base gems) for your selection will be installed shortly. Before it happens, please read and

Hello, I did the same question on stackoverflow (http://stackoverflow.com/questions/15784373/process-substitution) but did not understand completely the issue so I'm reporting it here: " I've given a look around about what puzzles me and I only found this: http://stackoverflow.com/questions/4274171/do-some-programs-not-accept-process-substitution-for-input-files which is partially