Bert,
   
  I tried readLines. It reads the data as is, but cant access individual columns. Still cant figure out how to accomplish this. An example would be of great help.
   
  PS: How do you indicate which fields are present in a record with less than the
full number? - Via known delimiters for all fields. 
  
TIA
  Sachin
   
  
Berton Gunter <gunter.berton@gene.com> wrote:
  How do you indicate which fields are present in a record with less than the
full number? Via known delimiters for all fields? Via the order of values
(fields are filled in order and only the last fields in a record can
therefore be missing)?

If the former, see the "sep" parameter in read.table() and friends.
If the latter, one way is to open the file as a connection and use
readLines()(you would check how many values were present and fill in the
NA's as needed).There may be better ways, though. ?connections will get you
started.

-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA

"The business of the statistician is to catalyze the scientific learning
process." - George E. P. Box



> -----Original Message-----
> From: r-help-bounces@stat.math.ethz.ch 
> [mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Sachin J
> Sent: Friday, August 18, 2006 9:14 AM
> To: R-help@stat.math.ethz.ch
> Subject: [R] dataframe of unequal rows
> 
> Hi,
> 
> How can I read data of unequal number of observations 
> (rows) as is (i.e. without introducing NA for columns of less 
> observations than the maximum. Example:
> 
> A B C D
> 1 10 1 12
> 2 10 3 12
> 3 10 4 12
> 4 10 
> 5 10 
> 
> Thanks in advance.
> 
> Sachin
> 
> 
> 
> 
> ---------------------------------
> 
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