From paradis@isem.univ-montp2.fr  Fri Jan  5 16:11:13 2001
From: paradis@isem.univ-montp2.fr (paradis@isem.univ-montp2.fr)
Date: Fri, 5 Jan 2001 17:11:13 +0100 (MET)
Subject: [Rd] crash with scan(..., what=list(,,)) (PR#802)
Message-ID: <200101051611.RAA27177@pubhealth.ku.dk>

When reading a file with scan(), the following crashes R under Solaris and
WinNT 4.0 (versions below):

> ads <- scan("Bltiadu.dat", what=list(,,))

Would an error message be more logical? Note that the followings work (the
data file has 201 lines and 3 columns):

> ads <- scan("Bltiadu.dat", what=list(0,,))
Read 603 lines
> ads <- scan("Bltiadu.dat", what=list(0,0,0))
Read 201 lines
> ads <- scan("Bltiadu.dat", what=list(0,0,))
Read 302 lines
Warning message: 
line 1 did not have 2 elements


> version
         _              
platform i386-pc-mingw32
arch     x86            
os       Win32          
system   x86, Win32     
status                  
major    1              
minor    2.0            
year     2000           
month    12             
day      15             
language R 

> version
         _
platform sparc-sun-solaris2.7
arch     sparc
os       solaris2.7
system   sparc, solaris2.7
status
major    1
minor    2.0
year     2000
month    12
day      15
language R


Emmanuel Paradis

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[Rd] crash with scan(..., what=list(,,)) (PR#802)
paradis@isem.univ-montp2.fr