Mea culpa, mea culpa
John Kane
Kingston ON Canada
-----Original Message-----
From: john.archie.mck...@gmail.com
Sent: Sun, 15 Feb 2015 10:20:39 -0600
To: murdoch.dun...@gmail.com
Subject: Re: [R] Noob question re: writing while loops on one line
On Sun, Feb 15, 2015 at 9:54 AM, Duncan Murdoch <murdoch.dun...@gmail.com>
wrote:
On 15/02/2015 10:08 AM, Sun Shine wrote:
> Thanks John: understanding it as a line return makes sense!
But it's not right. This is one statement, and it returns the value 3:
1 +
2
This is an error:
1 + ; 2
The semicolon is a statement separator, not a line return.
Technically speaking a semicolon is a statement terminator, not a statement
separator. In the case of the R language, that is a "nit". In the case of
Pascal, it is a big difference.
Duncan Murdoch
This is one reason why I _always_ use the semi-colon. It is _never_ really
wrong to do so. It may be _unnecessary_ in some case. It is also why I always
use <- as the assignment operator (well, that and because I like it from my APL
background). If there are two ways to express something, and one of them is
_always_ correct whereas the other _might not_ be correct in some cases, then I
think doing the former is simply "better form". But, then, I'm anal about other
things to. And that doesn't apply to interactive use. I don't terminate my
interactive statements with a semi-colon all the time. Just most of the time.
Of course, I'm a touch typist too and so it is not really much of a problem for
me.
--
He's about as useful as a wax frying pan.
10 to the 12th power microphones = 1 Megaphone
Maranatha! <><
John McKown
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