search for: pc1_signal

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2006 Jun 06
2
about string
Hello sir: There are 2 questions about string. 1 How to calculate the width of a string? e.g string "abc"'s width is 3; 2 How can I get the "substring" in such kind of condition: "f:\\JPCS_signal.txt" "f:\\PC1_signal.txt" "f:\\PC2_signal.txt" What I wanna get is "JPCS" "PC1" "PC2".How can I achieve them by R cammand? Thanks a lot! My best ------------------------------ ******************************************* Xin Meng Capitalbio Corporation National Engi...