Generating names iteratively in R for storing plots

Question

I\'m using R to loop through a data frame, perform a calculation and to make a plot.

for(i in 2 : 15){
# get data
dataframe[,i]  

# do analysis

# make plot         


        

Answer 1

Have a look at the packages lattice or ggplot2, the plot functions in these packages create objects which can be assigned to variables and can be printed or plotted at a later stage.

For instance with lattice:

library("lattice")
i <- 1
assign(sprintf("a%d", i), xyplot(1:10 ~ 1:10))
print(a1) # you have to "print" or "plot" the objects explicitly

Or append the objects to a list:

p <- list()
p[[1]] <- xyplot(...)
p[[2]] <- xyplot(...)