Hi folks.

If I have the following in my "data"

event    pH1    pH2
1            4.0     6.0
2            4.3     5.9
3            4.1     6.1
4            4.0     5.9
and on and on..... for about 400 events

Is there a way I can get R to plot event vs. pH1  and event vs. pH2 and
then do a loess or lowess line for each??

Thanks in advance
David

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