[R] Show density of coordinates per raster pixel

I have a raster file of the whole world and coordinates (latitude and longitude). I want to plot the coordinates on the raster file by showing the densitiy of the coordinates per raster pixel by using colours. So in the end I can see e.g. dark read at places in the world where there are high concen

[R] WISP-survey part of created area?

non random sampling design (i.e. the area is 24x100 but I only wanna search 24x40) Thank you already in advance for your help. Anja [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch

[R] Determining the correlation coefficient?

Hello, I need your help! Probably the answer is quite easy, but still ... How can I sample two (or more) vectors of data from a normal distribution so they are correlated with an exact value I select (for example pearson's r = .30)? Thanks! James [[alternative HTML version delet

Re: [R] lattice density plot: add vertical lines at groupwise medians for all panels

it clearly before. Best wishes Anja 2012/11/21 Jose Iparraguirre > Dear AnjaM > > There may be better ways of dealing with this, but the following works: > > > densityplot(~gcsescore | factor(score), groups=gender, data=Chem97, > auto.key=TRU

[R] RGTK2 and glade on Windows - GUI newbie

rmation I'm not sure, if this combination is running on Windows XP and I'm unsure how it works. Is there anyone, who has experience with this combination (if it works) and could tell me, where I could find something like a tutorial, how this combination is used together and how it work

[R] CRAN and Multiple Linear Regression

Hello I have to solve a multiple linear regression. Most programs like Excel or Mathlab only support 5-10 dimensions. Now I have installed CRAN and I have no clue what to do next. At the moment I am entering my data into an excelsheet (for quick copy- paste). The Y-array will be 20 columns (=dimen

Re: [R] CRAN and Multiple Linear Regression

I just have read the guide and I can do some small steps with cran but I still have no clue... I have data like this: X1 X2 X3 ... X21 Y 1 0 0 0 ... 18 -0,07254 2 1 0 0 ... 6 -0,14921 3 0