>>200
そこでWarning出るところにRの設計思想があるのかも。

Rの源流に触れるつもりでAPLの教科書を読んだんだけど、
初っぱなのサンプルでこんな事やっているから

((￣1+ρc),27)ρc←'APL IS HAPPY '

APL IS HAPPY APL IS HAPPY A
PL IS HAPPY APL IS HAPPY AP
L IS HAPPY APL IS HAPPY APL
IS HAPPY APL IS HAPPY APL
IS HAPPY APL IS HAPPY APL I
S HAPPY APL IS HAPPY APL IS
HAPPY APL IS HAPPY APL IS
HAPPY APL IS HAPPY APL IS H
APPY APL IS HAPPY APL IS HA
PPY APL IS HAPPY APL IS HAP
PY APL IS HAPPY APL IS HAPP
Y APL IS HAPPY APL IS HAPPY