R: basics - installastion, environment and debug

Install R

• $sudo apt-get install r-base

R edit environment

• Install vim-r-plugin
• Install vim screen plugin
• Install tmux tool by "apt-get install tmux"

R basics

• Install extra package
  • > install.packages("ismev")
• Source R script
  • > source("fit-gumbel.r")
• Call function provided by fit-gumbel.r
  • > fit-gumbel("in.dat")

R debug

take optim function as an example

• display source code of optim
  • > edit(optim)
• set debug mode
  • > debug(optim)
• check debug mode
  • > isdebugged(optim)
• cancel debug mode
  • > undebug(optim)
• debug optim (R source code src/library/stats/R/optim.R)
  • > debug(optim)
  • > out <- gumbel(dat)
  • Browser[2]> where
  • Browser[2]> [RET] - next step
  • Browser[2]> c - continue
  • Browser[2]> n
  • Browser[2]> Q
  • Browser[2]>

tmux usage

• tmux quick set
  • tmux to take out the tmux terminal environment
  • C-b % to split window into two panes (vertically)
  • C-b :split-window to split window into two panes (horizontally)
  • C-b o switch to next pane
  • C-b x kill current pane
• C-b has change to C-a
  • download a tmux.conf file
  • tmux source-file /devt/dev-rye/tmux-conf/tmux.conf
  • C-a | split vertically
  • C-a - split horizontally