similar to: Wait for user input with readline()

Hello, I am trying write a script that includes a prompt for user input using readlines() and was told that folks at R-devel might be able to help. I am running into the problem that when I run readlines() as a single line the prompt works perfectly, but when I try to run a block of code which includes the readline function, the script doesn't wait for the user input. I have seen this

Hi, I've seen various posts on this question, but still can't get the code right. If I run the following code one line at a time, it works fine. If I run it together as a block, however, it doesn't wait for the input and gives an error. There must be a way to have are pause/wait for an answer, but I can't seem to find it. Thanks! J Code: choosefunction <-

Hi. Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like repeat { readline() } without killing the Command window? Ctrl+C is not interrupting the loop: R : Copyright 2006, The R Foundation for Statistical Computing Version 2.2.1 Patched (2006-01-01 r36947) <snip></snip> > repeat { readline() } ^C ^C ^C ^C On Unix it works. The problem seems to get the

Hi all, Say I have a data frame something like the one below with different sample vials, measured before(B) and after(A) some process, with a value recorded at each measurement point vial measure value 1 B 26 1 A 12 2 B 45 2 A 30 3 B 32 3 A 27 4 B

Hi, I know that with readlines you can start executing a code upon user input. What I would like to do is to have the ability to abort a code based on a new user input. E.g. when the user hits enter the code stops running. That is, I would periodically check for a user input and stop the code when the correct input was entered. Below is an example of a function which would run an endless loop

Hello. I am trying to write an interactive function that asks the user for a vector of observations. Unfortunately, if a user inputs a vector, R treats the vector name as a string instead of a variable. Here is an example: vector.input<-function(){ k<-as.integer(readline("Input number of vectors: ")) obs<-as.integer(readline("Input number of observations per vector

Recently, while using R-patched and now R-1.6.1 (on RedHat Linux 7.1) I've been getting the following warning in the course of everyday activity: [... some R activity ...] In addition: Warning message: An unusual circumstance has arisen in the nesting of readline input. Please report using bug.report() > The warning is difficult to reproduce because it seems to appear at random times,

When I run the below section of code I get the following error: Error in if (co == "A" || co[1] == "O") { : missing value where TRUE/FALSE needed When I run the code in two parts where I first get the user's input then afterwards run the if/else section, there is no problem. Is there a way to stop the "run selection" process

Hi everyone, I am following instructions here as I have generated the following warning: > # stuff looping through some plots with ask=TRUE Hit <Return> to see next plot: Hit <Return> to see next plot: Hit <Return> to see next plot: Hit <Return> to see next plot: Hit <Return> to see next plot: In addition: Warning message: An unusual circumstance has arisen

Hello R-Users, I would like to use an iterative loop to collect user input from within a function. I'm sure that this would be some combination of "for","break", and "next" but have not been able to get the syntax down. I would like to print some text to the screen at each step in the loop, ask the user for input which is saved in an object, and then advance the

I am using readLines to read a fairly large ASCII file. readLines reads a fixed number of lines, then other R code processes the data, then readLines reads the same number of lines again, then other R code processes the data, then .... Sort of like: conn<-file('filename','r') for (chunk in 1:100000) { Lines<-readLines(conn,n=25) # process "Lines" }

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"

Hi, I am trying to write a function to read in a whole text file as a single string ( so I can calculate its "sha1" hash function using package "digest"). I need a single string containing the whole file, and so far I was using paste(readLines(fileName), collapse = ""). Unfortunately this function gives me warnings : incomplete final line found by readLines on

Dear R developers, I have found the following bug with readline() in R 0.63.3: if you execute the menu-function and then the readline() function, then readline() prompts "Selection:" > a <- readline() hello > a [1] "hallo" > a <- menu(c("a", "b"), title="bitte:") bitte: 1:a 2:b Selection: 2 > a <- readline() Selection:

Dear friends, In configuring R 2.4.1 for Solaris 11, using SunStudio 11 compilers, I get the following error. checking readline/history.h usability... no checking readline/history.h presence... no checking for readline/history.h... no checking readline/readline.h usability... no checking readline/readline.h presence... no checking for readline/readline.h... no checking for rl_callback_read_char

Tomas, Thank you for the explanation. I see in the documentation: "These functions are intended to be used with binary-mode connections." So I see how using it on a text connection is undefined, and not a bug. An error or warning when attempting to use a it on a text connection would be helpful considering how the behavior has changed in R-3.5. On Tue, May 29, 2018 at 3:09 AM, Tomas

Hi all, This seems like a basic problem, but no amount of playing with the code has solved it. I have a time-series data set like that shown below (only longer) and am seeking to plot the data with filled, circular points and error bars. I would like the error bars to be behind the points otherwise they tend to obscure the points (especially when I have a lot of points in the actual data set).

Hi All! I have some experience with R, but less experience writing scripts using R and have run into a challenge that I hope someone can help me with. I have multiple .csv files of data each with the same 3 columns of data, but potentially of varying lengths (some data files are from short measurements, others from longer ones). One file for example might look like this... Time, O2_conc,

Dear community, I'm trying to install R-2.2.1 on an IRIX 6.2 (Unix System V Release 4) system without root access. Unfortunately readline is not installed in default, so I installed it locally in my home directory, more precisely in: $HOME/vol/readline-5.1, where $HOME is "/home3/fa/faga001". Afterwards I appended the path to the library with several $PATH variable, which now looks

Dear community, I'm trying to install R-2.2.1 on an IRIX 6.2 (Unix System V Release 4) system without root access. Unfortunately readline is not installed in default, so I installed it locally in my home directory, more precisely in: $HOME/vol/readline-5.1, where $HOME is "/home3/fa/faga001". Afterwards I appended the path to the library with several $PATH variable, which now looks