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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