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how to impose the lines (Apply?)

2 messages · Uwe Ligges, Lisa Wang

#
Lisa Wang wrote:

            
It is completely unclear what you are really going to do.
Some code snippet and a more explicit question would help us to help.

Please read the posting guide (cited at the bottom of the mail) which 
gives advice how to formulate questions properly.

Best,
Uwe Ligges
#
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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