[R] Vector of string

[Sandor Benczik]

njhuang86 wrote:
> 
> Hi all. Suppose I have a vector of strings ie: ["12384", "AVC_TYU123123", 
> "ESPN_TYU", "TYU_TYU", "AVC3939", "hhr1919", "TYU0029"]
> 
> Is there an efficient method that would allow me to return a vector of the
> position of strings that start with "TYU"? So essentially, I would like to
> get back in return [4, 7]. Anyways, any help with be greatly appreciated!
> 

?grep

The pattern  is  "^TYU" with perl=T, if I am not mistaken.

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