Numeric Characters in String

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Hi Karl,
both strategies are possible using gsub:
gsub("([0-9]*).*","\\1",str) #extract numbers
gsub("[^0-9]","",str)  #remove all non-numeric characters

wrap it nicely in an "as.numeric" call to get numeric values.

cheers.

Am 16.09.2011 11:13, schrieb Karl Weinmayer:
Dear all,

I have a vector, which looks about like this:

str <- c("14.XYZ", "15.ABCDE", "16.dkieowo", "120.EIDKAI")

I need to extract the numerical characters out of the string, so I receive
in the end a normal vector containing:

vec <- c(14, 15, 16, 120)

I need a generic solution for this. My actual vector contains about 403
strings, and it is bound to change with different versions of my
calculations. So I need something that either extracts all numeric
characters or deletes everything else.

I hope you can help me out.

Best,

Karl

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