Re: [R] Fitting a linear model with a break point

ta stricte discussurus - -Ursprüngliche Nachricht- Von: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] Im Auftrag von Daniel Brewer Gesendet: Tuesday, September 08, 2009 10:16 AM An: r-h...@stat.math.ethz.ch Betreff: [R] Fitting a linear model with a break point Hello, I would like to

Re: [R] Fitting a linear model with a break point

dear Dan, As far as I know, the strucchange package can be helpful for you.. On the other hand, if your regression function is continuous at the unknown break points to be estimated, you could try the segmented package. Hope this helps you, vito Daniel Brewer ha scritto: Hello, I would lik

[R] Fitting a linear model with a break point

Hello, I would like to test some data to see whether it has the shape of a step function (i.e. y1 up until x_th and then y2 where x_th is the threshold). The threshold x_th is unknown and the x values can only take discrete values (0,1,2,3,4). An example would be: data<- data.frame(x=1:20,y=c(rn