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system.file

I'm a little bit confused since this worked until R-1.2.2: 

in a private package `maxstat' I added 

Tab2 <- as.matrix(read.table(system.file("LausenTab2.dat",
+                                          package="maxstat")[1]))

to the examples of a function `pLausen92'.

`examples(pLausen92)' succeeds but

`R CMD check maxstat' fails with
+                                          package="maxstat")[1]))
Error in file(file, "r") : cannot open file `'
Execution halted

`LausenTab2.dat' lives in `maxstat/inst'.

Torsten
_                           
platform i686-pc-linux-gnu           
arch     i686                        
os       linux-gnu                   
system   i686, linux-gnu             
status   Under development (unstable)
major    1                           
minor    3.0                         
year     2001                        
month    04                          
day      19                          
language R
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