Dear R Help,
I am attempting to make a plot of longitudinal data, a sample data
frame of which is shown below.
I'd like to show all of the subjects in the same plot, with a set of
connecting line segments for each subject. 'age' would be the x-axis
and 'score' would be the y-axis.
subject age score
1 10123 12 51.06
2 10123 14 50.00
3 10123 15 62.22
4 10124 12 74.42
5 10124 13 72.73
6 10124 14 63.41
7 10125 16 54.55
8 10125 17 50.00
9 10125 18 54.35
10 10128 17 97.83
11 10128 18 97.87
12 10128 19 100.00
...
Any help would be appreciated.
Regards,
Robert Terwilliger
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