[R] simulations with very large number of iterations (1 billion)

2011-04-15 Thread Marion Dumas
Hello R-help list I'm trying to run 1 billion iterations of a code with calls to random distributions to implement a data generating process and subsequent computation of various estimators that are recorded for further comparison of performance. I have two question about how to achieve

[R] fixed color scale for a series of contour plots

2009-11-03 Thread Marion Dumas
Hello, I am having trouble figuring out how to create a color scale that will be consistent across multiple contour plots. What I would like is to plot a series of contour or image plots for different subsets of a data set but make sure that the color key stays fixed so that the plots are

[R] problems with re-loading exported data

2009-10-30 Thread Marion Dumas
issue to clarify. Thanks Marion Dumas __ 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

[R] question about adding plots in a grid (lattice package)

2009-06-16 Thread Marion Dumas
Hello! I am starting to use the lattice package. I generated an xyplot conditioned on a factor that has three levels: hence I get three plots in three panels spaces and one is left empty. I would like to add a plot to the empty panel space. Is it possible? Thank you

[R] writing a panel function in coplot for displaying a non-linear regression model graphically

2009-06-07 Thread Marion Dumas
Hello,I am a little bit struggling with the following: I would like to draw a coplot and in each panel draw the curve and display the coefficients of the regression model y~a*x^b. I thought of running nls(y~a*x^b,...) in panel=function(x,y...){} when calling coplot. How can I do this?

[R] overlaying several subsets of data frame in pairs plot

2009-04-30 Thread Marion Dumas
treatments with the 'points' function. But how to do it in a pairs plot? Thank you for your help Best Marion Dumas __ 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