# orthogonal/perpendicular distance from regression line

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## orthogonal/perpendicular distance from regression line

 Hi there, I am trying to measure orthogonal/perpendicular distances from regression lines (i.e. the shortest distance from a given point to my regression line). As it sounds rather easy (basically just an orthogonal/perpendicular residual) I hoped that there was some function in R that can do that. All efforts so far remained unsuccessful, however. Does anybody know? Thnx and cheers, Philipp
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## Re: orthogonal/perpendicular distance from regression line

 For the bivariate case: g  <- function(b,x,y)          (abs(y - b[1] - b[2] * x))/sqrt(1 + crossprod(b)) url:    www.econ.uiuc.edu/~roger            Roger Koenker email    [hidden email]            Department of Economics vox:     217-333-4558                University of Illinois fax:       217-244-6678                Champaign, IL 61820 On Feb 20, 2009, at 11:12 AM, GAF wrote: > > Hi there, > I am trying to measure orthogonal/perpendicular distances from   > regression > lines (i.e. the shortest distance from a given point to my   > regression line). > As it sounds rather easy (basically just an orthogonal/perpendicular > residual) I hoped that there was some function in R that can do   > that. All > efforts so far remained unsuccessful, however. > Does anybody know? > Thnx and cheers, > Philipp > -- > View this message in context: http://www.nabble.com/orthogonal-perpendicular-distance-from-regression-line-tp22123179p22123179.html> Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > [hidden email] 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. ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.