I noticed I was remiss in addressing your origin question: Use the xlim and ylim, setting the lower limit to 0. Here's an example of this with the CO2 dataset:
plot(uptake~Plant, data=CO2) plot(uptake~as.numeric(Plant), data=CO2) plot(uptake~as.numeric(Plant), data=CO2, ylim=c(0, 50), xlim=c(0, 14)) Cheers,Tyler ---------------------------------------- > From: tyler_rin...@hotmail.com > To: kellycoo...@yahoo.com; r-help@r-project.org > Date: Mon, 14 May 2012 16:31:26 -0400 > Subject: Re: [R] Plot > > > > That is likely because ferm is a factor. A scatterplot is two numeric > variables. To make it a scatterplot wrap ferm with as.numeric. > Cheers, > Tyler > ---------------------------------------- > Date: Mon, 14 May 2012 12:21:12 -0700 > From: kellycoo...@yahoo.com > To: r-help@r-project.org > Subject: [R] Plot > > > Hello, > > I am trying to make a plot of the rates of an enzyme against three different > protein concentrations (there are 45 rates in total and split up into 3 > groups of 15, each receiving one of the 3 protein concentrations). When I > enter the following code I instead get 3 separate boxplots for each of the > three different protein concentrations ... > > > plot(rate ~ ferm, data=LDH, col=LDH$rate, > pch=c(17,18,19)[(as.numeric(LDH$rate)%%3)+1]) > > > but I want a scatterplot showing 3 different lines indicating each of the > protein concentrations. I'm not sure if I need to tweak my data set in order > to get what I want? > > I was also wondering how to include the origin (0,0) in the plots. I'm not > sure if I'm missing something on the plot help page? > > Any help would be appreciated. Thanks so much. > [[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. > > ______________________________________________ > 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.
