Hi,

I have two lists

1) List1- 30,000 rows and 104 columns

2) List2- a list of 14000 selected rownames  from List 1

Now, I want to extract all the 104 columns of List1  matching with the 14000 selected rownames from List2.  

Psedocode will be something like this: 
match rownames(List2) with rownames(List1)
extract selected matched 104 coloumns from (List1)
strore in-> List3

So the resulting List3 will contain 14,000 rows and 104 coloumns. 

How do I do it in R ?



Regards, 

P Barah 
Department of Biology, 
Norwegian University of Science & Technology (NTNU)
 Realfagbygget, N-7491 Trondheim, Norway 



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