Message-ID: <4CF826CB.1000403@witthoft.com>
Date: 2010-12-02T23:07:55Z
From: Carl Witthoft
Subject: Minor warning about seq
I believe the R intro manual and R-inferno have some pretty stern
warnings about never using 'c' or 't' as variable names, for obvious
reasons.
Similarly, I nearly crushed some code once by writing a nice little
function to find the mode of a data set and calling the function
"mode()" . (conflicts w/ an R builtin). Ended up calling it 'smode' .
Carl
From: Dieter Menne <dieter.menne_at_menne-biomed.de>
Date: Wed, 01 Dec 2010 00:14:17 -0800 (PST)
Prof. John C Nash wrote:
>
> I spent more time than I should have debugging a script because I wanted
> x<-seq(0,100)*0.1
>
> but typed
> x<-seq(O:100)*0.1
>
> seq(0:100) yields 1 to 101,
>
Which leads us to another rule: never use a variable called "O". I
remember this was a no-no even in my first Algol-course in 1967.