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Hi all, How to store recursive resutls from a function for each step without using global operators <<-? Thanks ahead. Xiaohui Chen Dept. of Statistics UBC, Canada _________________________________________________________________ Don?t waste time standing in line?try shopping online. Visit Sympatico / MSN

Hi there, couple of questions on data frames: 1) Is there a way to build an empty data frame, containing nothing but the data frame variable names? 2) Is there a way to reorder the variables in a data frame, e.g. When I go to write out a data frame using write.table or write.matrix, I want the output in a certain order... 3) How to I "append" to the bottom of a dataframe? Thanks! --j

All, I'd like to plot the main relationship of a grouped data object for all levels of a factor in a single panel. The sample code below creates a separate panel for each level of the factor. I realize that this could be done in other ways, but I'd like to do it via plotting the grouped data object. thanks! dave z = rnorm(18, mean=0, sd=1) x = rep(1:6, 3) y =