Class for time series

Dear all,

I have a time serie dataset such as the following with data acquired every 15 
minutes:

Date    Heure Profondeur Temp?rature Salinit? Turbidit? Chloration
1 2012-07-06 08:47:22     -0.144      22.469    0.011 0.000          0
2 2012-07-06 09:02:21     -0.147      22.476    0.011 0.000          0
3 2012-07-06 09:17:21     -0.139      22.498    0.011 19.323          0
4 2012-07-06 09:32:21     -0.136      22.540    0.011 19.343          0
5 2012-07-06 09:47:21     -0.141      22.510    0.011 19.321          0
6 2012-07-06 10:02:21     -0.139      22.372    0.011 19.280          0

I wonder what is the best class to use to manage such time series

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Cordialement

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Emmanuel Poizot
Cnam/Intechmer
B.P. 324
50103 Cherbourg Cedex

Web : http://www.geoceano.fr
Phone (Direct) : (00 33)(0)233887342 ou 41
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