Dear all, 
I want to do some time plots and actually the dates are in the format of dd/mm/yyyy. So first I input my dataframe in R in a csv form. What I do is 
 
DF<-read.csv("C:/Documents and Settings/DF.csv")
DATE<-as.Date(DATE, "%d/%m/%Y")  # to tell R that DATE column is indeed dates
with(DF, plot(DATE,pH))
 
Until here it works fine, but I have the graph plotting only the points. What I want is to have a line (join these points) so to have a time plot. I have tried different commands such as lines(DATE,pH) or with(DF, lines(DATE,pH) but nothing works. 
 
What can I do?
 
Yours
Lathouri Maria

	[[alternative HTML version deleted]]

