search for: 9jt

..... Dr Tom C Cameron office: 0113 34 32837 (10.23 Miall) Ecology & Evolution Res. Group. lab: 0113 34 32884 (10.20 Miall) School of Biological Sciences Mobile: 07966160266 University of Leeds email: t.c.cameron at leeds.ac.uk Leeds LS2 9JT LS2 9JT

...mally acheive on an X window by par(mfrow=c(1,4)). I have tried calling a new plot and setting par in this way but this has no bearing when I call png(). Any suggestions? Thanks in advance, Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...a number of histograms per page of output (one per column from a matrix), how can I pass the column name of the matrix into the title (or indeed to form part of the x-axis label)? TIA, Laura Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...9;t sufficient for my needs and I'm really after creating a continuous 3d gaussian mesh with a "positive" and "negative" dipole. Can anyone offer any pointers at all? Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...ombination. For example, where "a" = 1 and "b" = 1, the output is 400+200+300 = 900. Please would anyone be able to provide a script to create my desired output? Many thanks in advance, Ben Gillespie Research Postgraduate School of Geography University of Leeds Leeds LS2 9JT

...a statistical test for heteroscedasticity for an object of class "gls"? (or alternative objective methods). Thanks in advance, Ben Gillespie, Research Postgraduate o-------------------------------------------------------------------o School of Geography, University of Leeds, Leeds, LS2 9JT o-------------------------------o http://www.geog.leeds.ac.uk/ o-------------------------------------o @RiversBenG o--------------o

...e the following information: number of individual 'periods' where b>1 (= 2 in this case) period 1 length = 5, max = 4 period 2 length = 8, max = 5 I can't figure anything useful out. Thanks, Ben Gillespie Research Postgraduate School of Geography University of Leeds Leeds LS2 9JT http://www.geog.leeds.ac.uk/

...the least, all variables would share the same PC score). This is not the case and I was wondering could someone point me in the direction of some literature to explain the reason behind this? Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...ression(paste(etc.... to no avail. I receive errors such as: "Error: unexpected numeric constant..." Anyone had experience with this before? Any suggestions would be great. Many thanks in advance, Ben Gillespie Research Postgraduate School of Geography University of Leeds Leeds LS2 9JT

...t am having difficulty correctly assigning the destination in the new dataframe. Can anyone offer a quick and easy way of doing this (or even a long winded one if it works!!) Thank you in advance, Laura Quinn Institute of Atmospheric Science School of the Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...e, : unable to start device PNG In addition: Warning message: unable to open connection to X11 display`' Could somebody please advise a way around this? Thanks in advance, Laura Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...ultiple regression I'd use R-squared, but I can't find any similar items in the output from lme(). Does anyone know something I can use in these or any other package? Thanks, Richard. -- Richard Gunton PhD student - Ecology and Evolution group School of Biology, University of Leeds, LS2 9JT, UK Room 10.16, Miall Building Tel: 0113 3432825 http://www.personal.leeds.ac.uk/~bgyrg ~ Opinions expressed in this message are not attributable to the University of Leeds ~

...ated errors). I have noticed that although these models are the same (as they should be), the AIC value differs between glm() and gls(). Can anyone tell me why they differ? Thanks, Geertje ~~~~ Geertje van der Heijden PhD student Tropical Ecology School of Geography University of Leeds Leeds LS2 9JT Tel: (+44)(0)113 3433345 Email: g.m.f.vanderheijden04@leeds.ac.uk [[alternative HTML version deleted]]

..... Dr Tom C Cameron office: 0113 34 32837 (10.23 Miall) Ecology & Evolution Res. Group. lab: 0113 34 32884 (10.20 Miall) School of Biological Sciences Mobile: 07966160266 University of Leeds email: t.c.cameron at leeds.ac.uk Leeds LS2 9JT LS2 9JT

...,1:(ncol(x)/2)])), (y[,2]+50*(pca$rotation[i,((ncol(x)/2)+1):(ncol(x))])), angle=30,length=0.05,code=2) dev.off() } box() } }} many thanks in advance! Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...trol = list(maxiter = 500), trace=TRUE)). Now I receive an error message saying "step factor 0.000488281 reduced below 'minFactor' of 0.000976563". Any ideas? Many thanks in anticipation, LB ********************** Lindsay Banin School of Geography University of Leeds Leeds, LS2 9JT UK l.banin05 at leeds.ac.uk **********************

...co-ordinates of the four corners of a square, is there a function which will allow me to calculate the "mean" slope of the surface in a given direction? Thanks in advance.. Laura Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...performing a PCA and then reconstructing a data set from say the first 2/3 EOFs? I've had a look in the help pages and don't seem to find anything relevant. Thanks in advance, Laura Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...ns on the following, but none seems to work: newlist<-oldlist[,1] newlist<-oldlist[[]][,1] newlist<-oldlist[[]][,$colone] can anyone please offer some insight?? Thanks in advance, Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk

...uot;) } points3d(sample[i,1],sample[i,2],sample[i,3],color="white",size=3.5, lit=TRUE) text3d(sample[i,1],sample[i,2],sample[i,3],i,adj=0) }} Thanks in advance, Laura Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716 mail: laura at env.leeds.ac.uk