From rkoenker @end|ng |rom ||||no|@@edu  Wed Sep  9 10:00:41 2020
From: rkoenker @end|ng |rom ||||no|@@edu (Koenker, Roger W)
Date: Wed, 9 Sep 2020 08:00:41 +0000
Subject: [Rd] Environmental Messaging
Message-ID: <6C9F497D-5CEA-4A02-B7AB-490AB4022BB6@illinois.edu>

What sort of message is this to send to the younger generation?

> plastic = 1:5
> card = 1:4
> board = 1:4
> plastic/crossprod(card,board)
[1] 0.03333333 0.06666667 0.10000000 0.13333333 0.16666667
Warning message:
In plastic/crossprod(card, board) :
  Recycling array of length 1 in vector-array arithmetic is deprecated.
  Use c() or as.vector() instead.

ok,  I can write c(crossprod()) but it is ugly, and environmentally wasteful.
What?s next?  Warnings for my beloved  outer(card, board) * board


[Rd] Environmental Messaging
Koenker, Roger W