[R] How to set the floating point precision beyond e-22?

[Duncan Murdoch]

Peter Dalgaard wrote:
> Duncan Murdoch <murdoch at stats.uwo.ca> writes:
> 
> 
>>You will have to find a different solution to the problem.  To machine 
>>precision, that matrix looks singular.  This usually indicates that it's 
>>not the right matrix to try to invert.
> 
> 
> It might be a scaling issue though: If you're measuring age in days
> and hormone concentrations in Molar, then you'll get that sort of
> eigenvalue ratios in a fairly benign way.

Remember the old joke.

The patient to his doctor:  "It hurts when I do this."

The doctor:  "So don't do that."

Duncan Murdoch