大四上學期,上了杜老的R語言課~ 以下做了class, str, summary的紀錄~ > mydata [1] "My name is Charlie Chao." [2] "My lab is B329." [3] "My phone is 09xx-xxx-xxx." > class(mydata) [1] "character" > mode(mydata) [1] "character" > str(mydata) chr [1:3] "My name is Harry Potter." ... > summary(mydata) Length Class Mode 3 character character