Question: how to export data from r to csv file?
Answer: The 'write.csv( )' command can be used to save an R data frame as a .csv file. ... 
> healthstudy <- cbind(healthstudy,weight.kg,agecat)
Use the 'write.csv( )' command to save the file:
> write.csv(healthstudy,'healthstudy2.csv')
The help() function in R provides details for the different R commands. ... 
> help(read.csv)