@Deepti_Prasad so the mac direction say this right here:
Try system("defaults write org.R-project.R force.LANG en_US.UTF-8") in your R console you have open
Also this user had a similar issue: Installation- non-UTF8 locale MacBook
R and the R.APP GUI support for internationalization. Among other things this means that messages and GUI elements can be translated into various languages. R.APP automatically detects the user’s settings in the Language & Region section of the System Preferences and uses that information to offer translated messages and GUI if available.
If you use a non-standard setup (e.g. different language than formats), you can override the auto-detection performed by setting ‘force.LANG’ defaults setting, such as for example
defaults write org.R-project.R force.LANG en_US.UTF-8when run in Terminal it will enforce US-english setting regardless of the system setting. If you don’t know what Terminal is you can use this R command instead:
system("defaults write org.R-project.R force.LANG en_US.UTF-8")but do not forget to quit R and start R.APP again afterwards. Please note that you must always use ‘.UTF-8’ version of the locale, otherwise R.APP will not work properly.
By default R.APP uses UTF-8 for newly created documents and for the console. When opening new documents R.APP assumes UTF-8 and only if the document violates UTF-8 rules, it will try to fallback to legacy encoding, usually Mac Roman.
If you are interested in translating R.APP GUI into other languages, please read the developer documentation at http://developer.r-project.org/Translations30.html.
Summoning @technocrat
What information do you need to debug further if the above solution does not work?