John Fox

Results 64 comments of John Fox

Hi Michael, ----------------------------- John Fox, Professor Emeritus McMaster University Hamilton, Ontario, Canada Web: http::/socserv.mcmaster.ca/jfox > On May 3, 2020, at 8:22 PM, Michael Friendly wrote: > > > Well, matrix(1,1,1)...

Hi Michael, Since rank is the number of linearly independent rows or columns, this just seems correct -- that is not peculiar to qr(). Best, John > On May 3,...

Hi Georges, Though you shouldn't hesitate to fix QR(), I can take a look at it sometime this week. There are other places where we had to set drop=FALSE to...

Hi Georges, It's slightly off topic, but if by "our" you mean packages maintained not necessarily by all of us, then the answer is yes. There are small implications for...

Hi Michael, If I remember right, I wrote the initial version of QR() and Georges improved it. Unless Georges wants to do it, I can take a look at this,...

Hi, I took a look at this before seeing Georges's message, and I don't see what the problem is with Michael's fix. That is, the differences with qr() are inessential...

Dear H-H. Fuxelius, Perhaps I'm confused about what you're trying to do, but doesn't setting options(rgl.useNULL=TRUE) turn off rgl graphics but still allow the rgl package to load? From the...

Dear Hans-Henrik, This really isn't the right place to ask questions about the rgl package, which we don't maintain. You're encountering a known problem with rgl on the newest version...

Hi Patrick, Thanks for pointing out this problem. I don't see an easy fix. MASS::fractions() is called at a number of different points in the package code. We could pass...

Hi, That's clever and should work (except that MASS::fractions() isn't always called via formatNumbers()). Also, documenting the solution in an understandable manner for users would probably be challenging, and perhaps...