Hello Zhijie, You can many specific commands and tricks by using R commander's menus:
install.packages("Rcmdr") library(Rcmdr) However, I can not stress enough that if you want to be proficient and sound in your work with R, you will have to invest time reading the documentation (see documentation section here http://www.r-project.org/) and perhaps an introductory book such as the ones recommended in the R project site. Good luck! Francisco zhijie zhang wrote: > Dear R users, > We have some programs for the specific task in our research, but they were > very commonly used. We want to make some functions for them, anybody can > recommend any good tools to facilitate us to create R functions even without > going deep into the theories of R functions ? > Any suggestions or help are greatly appreciated. > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.