How can I access an element of a string?

Dear Daniel and Jorge,

    Thank you very much and it does help.

    If I have a string "ABCD", how can I access the second element of the
string "B"? Thanks,

Miao

2012/7/27 Daniel Nordlund <djnordlund at frontier.com>

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of jpm miao
Sent: Thursday, July 26, 2012 9:12 PM
To: r-help
Subject: [R] How can I access the title of a table read via read.csv?

Hi,

    I have a table which I can read via read.csv:

fx1<-read.csv(file="A_FX_M.csv", header=TRUE)

     TIME   REER    NTD    JPY      GBP    HKD
1 198001 124.26 36.030 237.96 2.263980 4.8366
2 198002 126.59 36.030 244.05 2.290426 4.8765
3 198003 128.33 36.026 248.62 2.206045 4.9960
4 198004 127.85 36.063 251.67 2.215330 4.9760
5 198005 124.40 36.050 228.35 2.302026 4.8891
6 198006 124.64 36.028 218.05 2.336995 4.9017
7 198007 125.17 36.007 220.95 2.371917 4.9046
8 198008 128.87 35.966 224.45 2.369107 4.9360

.......................


   How  can I access the title of the table? For example, I would like
to access the character string "REER"; how can I do it?


   Thanks,


Miao

Look at ?colnames.

colnames(fx1)[2]



Hope this is helpful,

Dan

Daniel Nordlund
Bothell, WA USA

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