How to configure and use spell check in Rstudio? In the tools>Global option>spelling I have set the main dictionary language as English(US) and custom dictionary as en_us from "/usr/lib/rstudio/resources/dictionaries/en_US.dic".
Still I do not see any indication (such as red make) on wrong spellings!!
RStudio does not have an as-you-type spell checker; you'll have to invoke spell checking manually. To do this, go to the Edit menu and choose Check Spelling, or press F7.
Note that spell checking is not performed on code files, only on document files (i.e. you won't get spell checking an .R file, but you will in an .Rmd file).