[R] Subseting data frame based on column names

[Uwe Ligges]

Li, Aiguo (NIH/NCI) [C] wrote:
> Hello all,
> 
>  
> 
> I have a data frame containing 170 columns and would like to generate a
> new data frame containing all rows but only 67 columns selected
> according to column names.  How can I do this?

For date.frame "d" and column names in vector "cn":

    d[,cn]

Uwe Ligges



>  
> 
> Thanks in advance,
> 
>  
> 
> AG Lee
> 
> 
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> 
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