Rev's Icon & Similarities to the "R" language???

Viktoras Didziulis viktoras at ekoinf.net
Wed Aug 2 04:35:35 EDT 2006


R language is not a general purpose language as Rev. R is a collection of
tools dedicated for statistical analysis of data. One could create a
powerful statistical data analysis package if combined R with Rev. 
 
Viktoras 
-------Original Message------- 
 
From: Richmond Mathewson 
Date: 08/02/06 11:26:10 
To: use-revolution at lists.runrev.com 
Subject: Rev's Icon & Similarities to the "R" language??? 
 
Just had a look at the "R" language manual - and it looks quite 
different from xTalk: all one has to do is look at the class of 
objects: 
I quote: 
 
NULL Null 
symbol a variable name 
pairlist a pairlist object 
closure a function 
environment an environment 
promise an object used to implement lazy evaluation 
language an R language construct 
special a built-in function that does not evaluate its arguments 
builtin a built-in function that evaluates its arguments 
logical a vector containing logical values 
integer a vector containing integer values 
double a vector containing real values 
complex a vector containing complex values 
character a vector containing character values 
... the special variable length argument *** 
any a special type that matches all types *** 
expression an expression object 
list a list 
externalptr an external pointer object 
weakref a weak reference object 
raw a vector containing bytes 
they made my hair go all cute and curly! Not at all like the language "we
know and love 
so well" [sorry, I grew up on Asterix the Gaul]. 
 
further to this: 
 
> e3 <- quote(plot(x = age, y = weight)) 
> e3$x 
age 
> e3$y 
 
does not look like any type of xTalk I know: 
in fact it looks a lot like the type of computer language 
I have spent my level best avoiding. 
 
sincerely, Richmond Mathewson 
weight 
 
____________________________________________________________ 
 
"Philosophical problems are confusions arising owing to the fluidity of
meanings users attach to words and phrases." 
Mathewson, 2006 
____________________________________________________________ 
 
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