[R] is.weekend() odd behaviour

[Matthew Dowle]

Thanks. When is.weekend() is given an object it doesn't know about, could a
warning or error be added? At the moment, I think you're agreeing, that it
silently returns a random TRUE/FALSE.

-----Original Message-----
From: Uwe Ligges [mailto:ligges at statistik.uni-dortmund.de] 
Sent: 26 May 2004 11:55
To: Matthew Dowle
Cc: 'r-help at stat.math.ethz.ch'
Subject: Re: [R] is.weekend() odd behaviour


Matthew Dowle wrote:

> It seems is.weekend() is unsure ?

It is completely sure, if an object is given is.weekend() knows about as in:

table(is.weekend(sapply(1:100, 
function(i){Sys.sleep(0.05);as.chron(Sys.time())})))

(note the as.chron() call!)

Uwe Ligges



> # Start R 1.9.0 with --vanilla on windows xp
> # load package chron
> 
> 
>>table(is.weekend(sapply(1:100, 
>>function(i){Sys.sleep(0.05);Sys.time()})))
> 
> FALSE  TRUE 
>    68    32 
> 
>>date()
> 
> [1] "Wed May 26 11:18:56 2004"
> 
> 
>>version         _              
> 
> platform i386-pc-mingw32
> arch     i386           
> os       mingw32        
> system   i386, mingw32  
> status                  
> major    1              
> minor    9.0            
> year     2004           
> month    04             
> day      12             
> language R              
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
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