I always like walking in the rain, so no one can see me crying should not fall under Mr. Market's influence, but rather you should learn to take advantage of him...Benjamin Graham

Warning: for() loops are used in R code much less often than in compiled languages. Code that takes a ‘whole object’ view is likely to be both clearer and faster in R. p.41

Nepal Earthquakes: Help Children Now

The Best tutorial:


data.table vs dplyr: can one do something well the other can't or does poorly?

RSelenium:,, &

Shiny: &

nyc open data: