2012年6月13日 · I've created some R code for use by people who know nothing of R (though I'm pretty green myself). I've been having people paste in the initial data to the R console (with …

2016年4月12日 · I am developing an R script in RStudio that requires the user to input two values (a first name and a last name). These inputs will later be used for pattern matching of a text …

2015年2月12日 · @Marek is very right. A few more remarks : In general, you shouldn't be using scan() but readline() for this.; I'd split the code so it becomes clear what serves to read in n, …

How to get the conditional sum of two columns? I am trying to get the sum of two columns in a data frame, with two additional conditions:

2017年9月7日 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Try Teams for free Explore Teams

2022年11月19日 · My target is to create a function named "questionaire()" to ask for the following three questions: Question 1: Where do you live?

2017年9月8日 · I would like to read an input given by User in R programming through message window. For example, It should give a message "enter the number" in a pop up box along with …

As others have pointed out, you're looking for exists.Keep in mind that using exists with names used by R's base packages would return true regardless of whether you defined the variable:

2013年3月8日 · Finding a function that you don't know the name of. Use ?? or, equivalently, help.search.??regression help.search("regression")

2022年10月18日 · Readline does wait for the user's input. But the problem is that, in your case, when you run all of your code at once, R will treat 'n2<-readline(prompt="Enter skip 2: " )' as …