[R] how to impose the lines (Apply?)

From: Lisa Wang <lisawang_at_uhnres.utoronto.ca>
Date: Sat 01 Oct 2005 - 07:22:46 EST


Hello,

I have data like the following (38 patients) each have a lot of record (some have more than others). I would like to plot time* pressure for each patient in the same plot. I try to write a function and then split the data by patients id and then sapply the function to the splited list, but I have difficulty to link the function to the data point. Please let me know if this is the rignt way to do it. Thanks a lot

patients time pressure

1             1      24
1             2      34
2             2      45
2             2.5    50
2             1.5    30
3             8      9

Lisa Wang
Toronto, Ca
tel: 416 946 4501

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