From cberry@tajo.ucsd.edu  Fri Sep 29 22:18:10 2000
From: cberry@tajo.ucsd.edu (cberry@tajo.ucsd.edu)
Date: Fri, 29 Sep 2000 23:18:10 +0200 (MET DST)
Subject: [Rd] all.equal.list() sometimes fails with unnamed and named components (PR#674)
Message-ID: <200009292118.XAA02892@pubhealth.ku.dk>


examples:

1) Fails to report that components 2 and 3 differ

all.equal(list(1,2,3,zap=1),list(1,3,4,zap=2))
[1] "Component zap: Mean relative  difference: 1


2) Incorrectly asserts all are equal when components 2 and 3 differ

> all.equal(list(1,2,3,zap=1),list(1,3,4,zap=1))
[1] TRUE

3) Removing named component reveals differences:

> all.equal(list(1,2,3,1),list(1,3,4,1))
[1] "Component 2: Mean relative  difference: 0.5"      
[2] "Component 3: Mean relative  difference: 0.3333333"

4) Unequal first component reveals differences

> all.equal(list(2,2,3,zap=1),list(1,3,4,zap=1))
[1] "Component : Mean relative  difference: 0.5"
[2] "Component : Mean relative  difference: 0.5"
[3] "Component : Mean relative  difference: 0.5"
> all.equal(list(2,2,3,zap=1),list(1,3,4,zap=2))
[1] "Component : Mean relative  difference: 0.5" 
[2] "Component : Mean relative  difference: 0.5" 
[3] "Component : Mean relative  difference: 0.5" 
[4] "Component zap: Mean relative  difference: 1"
> 

5) Second component IS equal, but:

> all.equal(list(2,2,3,zap=1),list(1,2,4,zap=2))
[1] "Component : Mean relative  difference: 0.5" 
[2] "Component : Mean relative  difference: 0.5" 
[3] "Component : Mean relative  difference: 0.5" 
[4] "Component zap: Mean relative  difference: 1"

--please do not edit the information below--

Version:
 platform = sparc-sun-solaris2.7
 arch = sparc
 os = solaris2.7
 system = sparc, solaris2.7
 status = 
 major = 1
 minor = 1.0
 year = 2000
 month = June
 day = 15
 language = R

Search Path:
 .GlobalEnv, Autoloads, package:base

Chuck Berry

-- 
Charles C. Berry                        (858) 534-2098 
                                         Dept of Family/Preventive Medicine
E mailto:cberry@tajo.ucsd.edu	         UC San Diego
http://hacuna.ucsd.edu/members/ccb.html  La Jolla, San Diego 92093-0645

 

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-devel-request@stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._


[Rd] all.equal.list() sometimes fails with unnamed and named components (PR#674)
cberry@tajo.ucsd.edu