Hello, Currently I'm only coming up with brute force solutions to this issue. Wondering if anyone knows of a better way to do this.
The problem: I have endpoints of one x range (x_rng) and an unknown number of s ranges (s[#]_rng) also defined by endpoints. What I want are the parts of the x ranges that don't overlap the s ranges. The examples below demonstrate what I mean. I'm glossing over an obvious endpoint inclusion/exclusion issue here for simplicity, but in a perfect world the resulting ranges would not include the s range endpoints and would include endpoints of the x range if they were not eliminated by an s range. Is there some function(s) in R that would make this easy? Ex 1. For: x_rng = c(-100,100) s1_rng = c(-25.5,30) s2_rng = c(0.77,10) s3_rng = c(25,35) s4_rng = c(70,80.3) s5_rng = c(90,95) I would get: xa_rng = c(-100,-25.5) xb_rng = c(35,70) xc_rng = c(80.3,90) xd_rng = c(95,100) Ex 2. For: x_rng = c(-50.5,100) s1_rng = c(-75.3,30) I would get: xa_rng = c(30,100) Ex 3. For: x_rng = c(-75.3,30) s1_rng = c(-50.5,100) I would get: xa_rng = c(-75.3,-50.5) Ex 4. For: x_rng = c(-100,100) s1_rng = c(-105,105) I would get something like: xa_rng = c(NA,NA) or... xa_rng = NA Ex 5. For: x_rng = c(-100,100) s1_rng = c(-100,100) I would get something like: xa_rng = c(NA,NA) or... xa_rng = NA [[alternative HTML version deleted]] ______________________________________________ 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 code.