search for: invisibles

Hi, I stumbled across the following (unexpected for me) behavior after replacing a return() statement in the middle of a function by invisible(). Example: foo <- function() { cat("before\n"); return(); cat("after\n")} >foo() before NULL foo2 <- function() { cat("before\n"); invisible(TRUE); cat("after\n")} >foo2() before after I expected

Evaluate the following example to get the behavior : --- anybody: patch ? --- tst.i <- function(x) { if(missing(x)) return(invisible()) else if(!is.numeric(x)) stop("x must be numeric") ## else invisible((x+3)^2) } tst.i()#-- should NOT print anything !! print(mode(tst.i()))#--gives "NULL" both in S-plus 3.4 and R 0.60 tst.i(1)# nothing (ok in R and

Suppose we have a function such as the following F <- function(f, x) f(x)+1 which runs function f and then transforms it. I would like the corresponding function which works the same except that unlike F returns an invisible result if and only if f does. Is there some way of determining whether f returns an invisible result or not? Thus we want this: f <- function(x) x g <-

###Dear R users ###I have been using SensoMineR package from CRAN for most of my work in sensory data analysis and from my usage experience, I encountered some areas for improvement and considered ###modifying the function in SensoMineR package for my personal use. I felt that it could be useful to share this to the community for enabling adoption by other users where they might require a

As part of my 3 day training course on Rails, I hand out a 24 page "short reference" of Rails. It''s collection of the most used calls, methods, functions across a wide range of Rails functionality. I have released it under a Creative Commons license, so feel free to grab it and use it and improve it. It''s a bit rough around some of it''s edges, and I

{Nothing really harmful; R 1.1.0} dim(.) sets (or doesn't clear) the ``invisible flag'' for printing in certain circumstances: > dim(a <- cbind(1)) > does *not* print as it should : > dim(a) [1] 1 1 --- Question to the real "hackers" : How can I check this using R code alone (not using files), i.e. (how) can I ask an R expression if its

Dear R Core devs, I wonder if it makes sense to make function file.rename return invisible? This is not a big issue, but when running in RMarkdown or knitr, this function will print results. I have to manually call invisible to hide the output from showing in the final document: ```r invisible(file.rename(...)) ``` Otherwise knitr will print: ``` file.rename(...) #> TRUE ``` If this

Hi, I'm new to R. I'm trying to do some extreme value theory analysis, looking at the Mean Excess Plot of a series. These are the commands I type to get the plot: x=read.table("data.txt",header=T) goa=(x[,3]) meplot(goa) I can see the plot, but I would like to see the values of the x and y axis. According to this page

I thought that invisible works like return() However, it appears that it doesn't exit a function. Is it supposed to work this way? funInvisible = function(){ invisible(10) cat('I was not expecting this to print\n') cat('because it occurs after the invisible return\n') } funInvisible() funVisible = function(){ cat('start of function\n')

Hi Team, After performing the gluster clean up and again doing gluster configuration the sub directories become invisible. Even after they are present the directories are invisible. If I create a new directory by the same name it will say the directory already exists. Thanks & Regards, Sangeeta Ramapure -------------- next part -------------- An HTML attachment was scrubbed... URL:

I noticed an issue where readChar does not return the correct value after a call to readline. It appears that readChar is not aware of the buffering, so it reads from the end of the buffer, rather than the current position in the file. This is a significant change of behavior from R-3.4.4. Below is a test case that I used to home in on the problem. --- p<-"test2.txt"

can you please describe a bit more about the steps taken to clean up and re-configure gluster? Regards, Vijay On Mon, Jun 12, 2017 at 12:08 PM, Sangeeta Ramapure < sangeeta.ramapure at globallogic.com> wrote: > Kindly somebody help me with this issue. > > > > Thanks & Regards, > > Sangeeta Ramapure > > > > *From:* Sangeeta Ramapure

Contrary to, say, Sys.setenv(), Sys.setlocale() returns it's value visibly. This means that if you for instance add: Sys.setlocale("LC_COLLATE", "C") to your .Rprofile file, it will print: [1] "C" at startup. The workaround is to wrap the call in invisible(), but I'd argue that any "setter" function should return invisibly. Some more details:

Kindly somebody help me with this issue. Thanks & Regards, Sangeeta Ramapure *From:* Sangeeta Ramapure [mailto:sangeeta.ramapure at globallogic.com] *Sent:* June 09, 2017 4:41 PM *To:* 'gluster-users at gluster.org' *Cc:* 'devarajan at ericsson.com' *Subject:* After gluster clean up sub directories becomes invisible Hi Team, After performing the gluster clean up

Running "as.character" on a large POSIXct causes a segfault on my 2.11 (2010-04-22) install. Seems to crash at around 9e4 ... on OSX and Ubuntu at least. > invisible(as.character(Sys.time()+1:7e4)) > invisible(as.character(Sys.time()+1:8e4)) > invisible(as.character(Sys.time()+1:9e4)) Error: segfault from C stack overflow > invisible(as.character(Sys.time()+1:5e5)) Error:

Hello! We are running distributed volume that contains 7 bricks. Volume is mounted using native fuse client. After an unexpected system reboot, some files are disappeared from fuse mount point but still available on the bricks. The way it disappeared confusing me a lot. I can't see certain directories using ls -la but, at the same time, can cd into the missed directory. I can rename the

Hi, My samba server "linux-1" (samba-3.0.2-7.FC1) has suddenly become invisible from all windows client. The samba server is a member of the "RASKNO" workgroup and was visible when browsing the workgroup from windows clients a few weeks ago. The weird thing is that it is now invisible. The only changes has been regular updates of FC1. The symptoms is that I can search for

I think this is a more problematic buglet in (implicit/explicit) ``invisible behavior''). Try this (all versions of R from 0.49 to 0.60): test0 <- function() c(1,2) test <- function(two = FALSE) c(1, if(two) 2) testR <- function(two = FALSE) return(c(1, if(two) 2)) test0()# 1 2 as it should test() #

Dear R devel list I was wondering whether zip() contains a windows specific call to system(), as the argument "invisible" seems to be windows specific, yet is used anytime by zip: invisible(system2(zip, args, invisible = TRUE)) Indeed, calling zip() on Linux results in a warning message: > file.create("try") [1] TRUE > zip("try.zip", "try")

I''m happy to announce a two day RubyOnRails Workshop in Switzerland, 27.-28. February 2006. Details can be found here: http://www.invisible.ch/static/47/ rubyonrailsschulung (german) cheers Jens-Christian -- InVisible GmbH, Langgr?tstrasse 172, 8047 Z?rich Phone: +41 44 401 09 30 http://www.invisible.ch http://not.invisible.ch -------------- next part -------------- A non-text