Re: [R] "helper" lines in plot. From point to axis.

2009-08-23 Thread Uwe Ligges
Looks like nobody answered so far? If I understood it correctly, you want something like: x <- 1:36 plot(x, log(x, 1.1), xlab="Number of months", ylab="Visits(1000)", main="webpage visits") helper.lines <- function(x, y, lty=2, col="red", text=TRUE){ segments(par("usr")[1], y, x, y, col

[R] "helper" lines in plot. From point to axis.

2009-08-13 Thread Andreas Christoffersen
This is a very basic question. I am just wondering if there is a function where i can choose a vector of points, and them helper lines are drawn. I am asking because lines seams to be a cumbersome way to do this. E.g. x <- 1:36 plot(log(x,1.1),xlab="Number of months", ylab="Visits(1000)",main="we