Auto-completion is fancy in a text editor. Notepad++ does not support auto-completion for the R language, so I spent a couple of hours on creating such an XML file to support R, and you can get the R script on GitHub.
Put the output file R.xml from that script under plugins/APIs in the installation directory of Notepad++ (you can see several other XML files there supporting different languages such as C), and make sure you have enabled auto-completion in Notepad++ (Settings --> Preferences --> Backup/Auto-completion). Open an R script and start typing a familiar function (e.g. paste()), you will see some candidates in a drop-down list like this:
Hit the Enter key if the function name selected in the list is correct for you, then type ( and you will see hints for parameters:
The file R.xml contains almost all visible R objects in base R packages as well as recommended packages like MASS. You may create an extended XML file (containing keywords from other packages) by yourself after loading the packages you need into your current workspace, and run the R script above.
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As a freelancer (currently working as a contractor) and a dad of three kids, I truly appreciate your donation to support my writing and open-source software development! Your contribution helps me cope with financial uncertainty better, so I can spend more time on producing high-quality content and software. You can make a donation through methods below.
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When sending money, please be sure to add a note “gift” or “donation” if possible, so it won’t be treated as my taxable income but a genuine gift. Needless to say, donation is completely voluntary and I appreciate any amount you can give.
Please feel free to email me if you prefer a different way to give. Thank you very much!
I’ll give back a significant portion of the donations to the open-source community and charities. For the record, I received about $30,000 in total (before tax) in 2024-25, and gave back about $15,000 (after tax).