Hi,
I'm trying to make a function which does a lot of computational work and
visualization work.
This won't be a problem, but as things can get a lot of computational time, I
would like to print what is going on, but also instructions about what the user
should do.
A small example:
fctn <- function(data.df){
cat("Calculating linear regression \n")
data.lm <- lm(y~x,data.df)
cat("Calculating ANOVA \n")
data.aov<- aov(data.lm)
cat("Plotting graphs \n")
plot(y~x, data.df)
cat("Click on the graph to set X and Y limits \n")}
lim <- locator(n=2)
plot(y~x,data.df,ylim=sort(lim$y),xlim=sort(lim$x))
...............
}
But unfortunately R will do first the calculations and then afterwards return
the strings.
Is there a way around?
Thanks
Bart
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