2012年6月13日 · And with these 4 newly defined variables (X,Y,T,V) R's next step is to run the pre-written code. X+Y V+T And in the console the answers pop up. 5 8 8 8 10 And everyone is happy. My apologies as this is not a reproducible code kind of question, but I'm not sure how to approach making R ask questions as opposed to me asking question about R!

When using renv in an R project, should the renv package be included in a renv.lock file or would it be best to exclude it. I cloned an R project repository that had renv version 0.15.5 recorded in ...

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, and what serves to read in acr.

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

2014年1月14日 · @smci: I didn't ask for 'programmatically' in my original question. I don't know why you would change the entire nature of my question. – stackoverflowuser2010

2014年4月7日 · I am trying to run an R script, using Rscript in Windows command prompt and ask for user's input. So far, i have found answers on how to implement something similar in R's interactive shell. readline() or scan() doesn't seem to work for the command prompt. Examples: I have a polynomial y=cX where X can take more than one values X1,X2,X3 and so on.

Using exists() on a list does work, but I believe that R internally coerces it to an environment before checking for an object of that name, which is inefficient and can result in errors if there are any unnamed elements.

2016年8月22日 · It's just a vector with one element. As I go through my loops, sometimes it has a value, and at other times it doesn't. All I want to do is ask if it contains anything, and if not, merely loop back around. Right now my script fails because when count_1 is empty, I get this: missing value where TRUE/FALSE needed Execution halted

2018年11月26日 · I'd like to generate a popup box in R with six inputs. I prefer to have all the inputs in the same pop-up box because most of the time most will be the default, and I'd like to quickly see at a glance that they are all correct rather than having to click through six popups.

How to write a R function to check whether a variable is a non-numeric variable and switch it to numeric Hot Network Questions Changing thousand separator in format_number() function using QGIS