Am 14.05.2010 12:10, schrieb arnaud Gaboury:
> Dear group,
>
> Here is an object:
>
> z <-
> c("LSCPos100415.csv", "LSCPos100416.csv", "LSCPos100419.csv",
> "LSCPos100420.csv", "LSCPos100421.csv", "LSCPos100422.csv",
> "LSCPos100423.csv",
> "LSCPos100426.csv", "LSCPos100427.csv", "LSCPos100428.csv",
> "LSCPos100429.csv",
> "LSCPos100430.csv", "LSCPos100503.csv", "LSCPos100504.csv",
> "LSCPos100505.csv",
> "LSCPos100506.csv", "LSCPos100507.csv", "LSCPos100510.csv",
> "LSCPos100511.csv",
> "LSCPos100512.csv", "LSCPos100513.csv")
>
> I want to keep only the numeric part of each element.
> I thought using something like :
>
>> sub("REGEX","",y)
>
> I tried something with " \\D+", but it is not the final result I want
>
>> sub("\\D+","",y)
> [1] "100415.csv" "100416.csv" "100419.csv" "100420.csv" "100421.csv"
> "100422.csv" "100423.csv" "100426.csv" "100427.csv" "100428.csv"
> "100429.csv" "100430.csv" "100503.csv" "100504.csv" "100505.csv"
> [16] "100506.csv" "100507.csv" "100510.csv" "100511.csv" "100512.csv"
> "100513.csv"
> gsub("\\D","",z)
[1] "100415" "100416" "100419" "100420" "100421" "100422" "100423" "100426"
[9] "100427" "100428" "100429" "100430" "100503" "100504" "100505" "100506"
[17] "100507" "100510" "100511" "100512" "100513"
HTH,
Bernd
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