[R] plot mean + S.E. over time

[Jan Wantia]

Hi, there!

I finally became a disciple of 'R', after having lost years of my life 
handling data with a popular, rather wide-spread spreadsheet-software.

Now I want to plot the results of many runs of my simulation over time, 
so that the means +/- Standard error are on the y-axis, and time on the 
x-axis.

I have tried 'boxplot', with timesteps as the grouping variable, but did 
not manage to replace quartils by S.E.
Then, with 'plot' I do not know how to handle the data of 100 runs for a 
given time to produce the mean and S.E.

Are there any suggestions? Any help would be appreciated!

Cheers, Jan

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______________________________________________________

Jan Wantia
Dept. of Information Technology, University of Zürich
Andreasstr. 15
CH 8050 Zürich
Switzerland

Tel.:     +41 (0) 1 635 4315
Fax:     +41 (0) 1 635 45 07
email: wantia at ifi.unizh.ch