[R] Finding multiple characters in the same string

[Tom.O]

Thanks for the quick reply

//Tom


Vladimir Eremeev wrote:
> 
>> gregexpr("[0-9]","this1is2a3test")
> [[1]]
> [1]  5  8 10
> attr(,"match.length")
> [1] 1 1 1
> 
>> unlist(gregexpr("[0-9]","this1is2a3test"))
> [1]  5  8 10
> 
> 
> Tom.O wrote:
>> 
>> I have this problem where I need to find if there is any numbers in a
>> string, this is no problem if theres only one number per string. I would
>> then simply use the regexpr() funtion togheter with the substring
>> function to extract the number. But regexpr only picks one number per
>> string either from the beginning or the end, but not multiple. Can this
>> be done? And how
>> 
>> for example
>> My string <- "this1is2a3test"
>> 
>> The result I want is an vector of c(1,2,3)
>> 
> 
> 

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