Tweeted By @hadleywickham
I just crunched the numbers and determined I make (on average) $1.86 on each copy of R4DS — so you should never feel about using the free website! (https://t.co/48IKOWCtSc)
— Hadley Wickham (@hadleywickham) August 22, 2018
I just crunched the numbers and determined I make (on average) $1.86 on each copy of R4DS — so you should never feel about using the free website! (https://t.co/48IKOWCtSc)
— Hadley Wickham (@hadleywickham) August 22, 2018