Dear R users and Helpers

I am beginner with using R and interested in carrying out certain task for my 
statistical research.
I am reading data for a text file, which could contain data in following pattern

x       y
8       10
11      14
16      16
18      15
6       20
4       4
20      18

As per the example I have two columns and 7 rows of data in each. 
However is real life data situation I may not know how many columns are present and 
how rows are present  and also with the certain data is missing. Yes I am assuming the 
data is delimited my Tab.


My question or rather problem is I want read data from each colum say col x 
(8,11,16,18�.20) and store it into a variable so that I could perform some operations 
on them.

I have also looked into certain R-help for Read.table and data.frame but still 
struggling on my requirement. They are

http://tolstoy.newcastle.edu.au/R/help/04/07/2040.html
http://tolstoy.newcastle.edu.au/R/help/04/07/3152.html


Regards
Kunal

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