Summary re: read.table on Mac OS 10

Prof. Ripley,

I encountered the read.table problem in the Darwin version using 
as.is=TRUE, but not with as.is=FALSE. It gives different results than 
the Carbon version does. The output for each version follows; 'temp' is 
a two-line text file with three tab-delimited columns.

UNDER DARWIN:
 > read.table('temp')
               V1   V2   V3
1 AFFX-BioB-5_at -214 -139
2 AFFX-BioB-M_at  -49  -11
 > read.table('temp',as.is=TRUE)
stack imbalance in internal type.convert, 26 then 25stack imbalance in 
Internal, 25 then 24
stack imbalance in if, 19 then 18
stack imbalance in <-, 17 then 16
stack imbalance in {, 15 then 14
stack imbalance in for, 8 then 7
stack imbalance in {, 6 then 5
               V1   V2   V3
1 AFFX-BioB-5_at -214 -139
2 AFFX-BioB-M_at  -49  -11
Error: unprotect(): stack imbalance

UNDER CARBON:
 > read.table('temp')
               V1   V2   V3
1 AFFX-BioB-5_at -214 -139
2 AFFX-BioB-M_at  -49  -11
 > read.table('temp',as.is=TRUE)
               V1   V2   V3
1 AFFX-BioB-5_at -214 -139
2 AFFX-BioB-M_at  -49  -11

Best regards,
David

Neither of you have anywhere told us what the actual error message was
in problem number 3.

http://www.mcg.edu/research/biostat/bickel.html

David R. Bickel, PhD
Assistant Professor
Medical College of Georgia
Office of Biostatistics and Bioinformatics
1120 Fifteenth St., AE-3037
Augusta, GA 30912-4900

Tel.: 706-721-4697; Fax: 706-721-6294
E-mail: dbickel at mail.mcg.edu or bickel at prueba.info

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