[R] Time plots
Dear all, I want to do some time plots and actually the dates are in the format of dd/mm/. 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]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Time plots
try plot(DATE, pH, type='l') On Mon, Nov 17, 2008 at 10:30 AM, Lathouri, Maria [EMAIL PROTECTED] wrote: Dear all, I want to do some time plots and actually the dates are in the format of dd/mm/. 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]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Time plots
On Mon, 17 Nov 2008 15:30:14 - Lathouri, Maria [EMAIL PROTECTED] wrote: LM I want to do some time plots and actually the dates are in the LM format of dd/mm/. So first I input my dataframe in R in a csv LM form. What I do is DF-read.csv(C:/Documents and Settings/DF.csv) LM DATE-as.Date(DATE, %d/%m/%Y) # to tell R that DATE column is LM indeed dates with(DF, plot(DATE,pH)) Use a time series class for your data. Then you will get plots with lines. Have a look at the zoo package and/or ?ts Stefan __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Time plots
Also if this is a time series you may wish to represent it as such to facilitate other computations as well. This assumes that the DATE column is first and the remaining columns are numeric: library(zoo) mypath - /whatever/myfile.csv z - read.zoo(mypath, sep = ,, header = TRUE, format = %d/%m/%Y) plot(z) See the three zoo vignettes for more info. On Mon, Nov 17, 2008 at 11:00 AM, jim holtman [EMAIL PROTECTED] wrote: try plot(DATE, pH, type='l') On Mon, Nov 17, 2008 at 10:30 AM, Lathouri, Maria [EMAIL PROTECTED] wrote: Dear all, I want to do some time plots and actually the dates are in the format of dd/mm/. 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]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Time plots
Lathouri, Maria m.lathouri06 at imperial.ac.uk writes: [...] 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? [...] plot(DATE,pH, type=l) This should do it. when you look into the plot-help-pages, then you can see a lot of plotting-types. with type p it plots points (default) with type l it plots lines with type b it plots lines and points Ciao, Oliver __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
