Hi, Ignore the last email - R has plotted the number of data points (100) I have and using that as a scale rather than the normalised data values
Sorry to be a pest!! Julie Julie Hope (NERC PhD Student) Sediment Ecology Research Group, University of St Andrews & School of Geoscience, Bangor University Scottish Oceans Institute University of St Andrews, East Sands St Andrews, Fife KY16 8LB Tel No: 01334 463469 / Email: ja...@st-andrews.ac.uk Web: http://synergy.st-andrews.ac.uk/serg On 19 November 2014 18:48, Julie Hope <ja...@st-andrews.ac.uk> wrote: > Hi, > > I am currently using the lattice library and trellis graphs to explore my > data. Without going into too much detail of the data I just have a > question about how dot plot in the lattice library scales things... > > I have normalised data that I am exploring as a function of time > partitioned by Date > > *dotplot(NormCarbs ~ time | date)* > > I also wanted to look at this Normalised data as a function of a conc, > again partitioned by Date > > *dotplot(NormCarbs ~ ugml1 | date)* > > For the first plot above - the Normcarbs on Y axis is the scale of my > original data (0 - 0.1) - (I have very low values) > > However when the second plot above is run in R, my scale jumps to 1-100 on > the Y axis for NormCarbs? > > I have no idea if the fact that the ugml1 on the X axis is in the region 0 > - 350 ugml1 has anything to do with this? Is R correcting to keep both > variables in the same order of magnitude? > > The NormCarbs data for each plot are both draw from the same column of > data in my csv file in which the values are between 0 - 0.1. > > The second plot looks great actually, I'm just wondering what R is doing. > The code above is all I have specified? > > Is it scaling it to allow me to see the data better? I can't really > decipher the first plots data as everything is so close together so it > would be good to be able to control this to allow me to explore the data > better before I start to > > If so, is there a way for me to control this (i.e. by controlling the > scaling) > > What is R doing mathematically to my data to get this? > > *Any help on this would be very much appreciated. * > > *Thank you!* > > *Julie* > > > > Julie Hope (NERC PhD Student) > Sediment Ecology Research Group, University of St Andrews > & School of Geoscience, Bangor University > Scottish Oceans Institute > University of St Andrews, East Sands > St Andrews, Fife > KY16 8LB > Tel No: 01334 463469 / Email: ja...@st-andrews.ac.uk > Web: http://synergy.st-andrews.ac.uk/serg > [[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.
