Dear all,
I need to read an ASCII file with diffent length lines.

This is what is contained in the file gene.txt:
1st line  ID description snp_id genotype
2nd line 10003 Low rs152240 
3rd line 10003 Moderate rs189011 TC
4th line 10004 Conservative rs152240 GC
5th line 10004 Bad rs154354
6th line 10013 Bad rs152240
7th line 10019 Conservative rs152240 AC
etc...

This is what I would like to obtain in R:
ID        description         snp_id          genotype
10003    Low                 rs152240     NA
10003    Moderate         rs189011     TC
10004    Conservative    rs152240     GC
10004    Bad                  rs154354     NA
10013    Bad                  rs152240     NA
10019    Conservative    rs152240     AC

Read.table() doesn't work in these situations because of the irregular 
pattern of data. Have you got any suggestion?
Thanks a lot!
Cristian

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Cristian Pattaro
===========================================

Unit of Epidemiology & Medical Statistics
Department of Medicine and Public Health
University of Verona
cristian@biometria.univr.it
http://biometria.univr.it
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