Dear R community members,
I think I am asking a very simple question, but I really looked up in
the faqs and manuals and found nothing helpful.
I am trying to plot a data frame with the following structure (this is
just a small extract):

 glo conc odor line series     X1     X2     X3       X4        X5
X6      X7      X8      X9       X10     X11    X12    X13
   1    0  AIR  LN1     UP -0.488 -0.242 -0.143  0.008  0.142  0.075
-0.031 -0.077  0.095 -0.345 -0.187  0.201  0.524
    2    0  AIR  LN1     UP  0.482  0.209  0.448  0.338  0.295  0.140
0.157 -0.043 -0.341 -0.601 -0.517 -0.335  0.070
    5    0  AIR  LN1     UP -0.294  0.214  0.409  0.048  0.198 -0.081
0.001 -0.005 -0.136 -0.572 -0.286  0.021 -0.042
    7    0  AIR  LN1     UP -0.488 -0.203  0.104 -0.123  0.112 -0.140
0.049 -0.016 -0.080 -0.130  0.105  0.272  0.882
    1    0  AIR  LN2     UP -0.643 -0.038 -0.201 -0.089  0.113 -0.055
0.013  0.012 -0.064 -0.063  0.123  0.002 -0.099
    2    0  AIR  LN2     UP -0.510  0.364  0.619  0.565  0.634  0.167
0.209 -0.300 -0.615 -0.528 -0.400 -0.623 -0.312
    5    0  AIR  LN2     UP  0.350  0.737  0.183  0.563  0.406  0.169
-0.155 -0.189  0.036  0.051  0.297  0.014 -0.380
    7    0  AIR  LN2     UP -0.450 -0.234 -0.526 -0.587 -0.068 -0.187
0.124  0.070  0.141  0.159  0.356  0.505  0.648

Where the first 5 columns (glo, conc, odor, line, series) are different
categorizing factors and the rest are values of a variable over time.
I would like to plot the values of the independent variable over time
with one line for each of the groups defined by the categorical factors.
I have tried something like extracting the time series for a particular
group with, for example 
data[1,6:18] and plotting  that against a vector time=c(1:13), but that
does not work.
Is there any way of making such a plot or should I rearrange the data so
that time is also a factor specified by a column?

Thank you very much in advance.
Ana
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Ana Florencia Silbering
Departament of Biology - Universität Konstanz
Universitätsstraße 10 - M11
D-78457 Konstanz
Germany
 
Tel.: (+49 7531) 88 - 4642
Fax: (+49 7531) 88 - 3894
email: anafs@zedat.fu-berlin.de
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