Re: [R] System is computationally singular and scale of covariates

wrote: > From: Stephan Lindner > Subject: [R] System is computationally singular and scale of covariates > To: r-h...@stat.math.ethz.ch > Received: Sunday, 16 August, 2009, 9:15 AM > Dear all, > > > I'm running a self-written numerical optimization routine >

[R] System is computationally singular and scale of covariates

Dear all, I'm running a self-written numerical optimization routine (hazard model) which includes computing the inverse of the outer product of the score. I have been getting the above error message ("System is computationally singular"), and after some tweaking, I realized that these variables h