search for: precison

Hello T I want to order some calculation "result", there will be lots of "result" that need to calculate and order PS: the "result" is just a intermediate varible and ordering them is the very aim # problem: # For fixed NT and CT, and some pair (c,n). order the pair by corresponding result # c and n are both random variable CT<-6000 #assignment to CT

Dear group, I am trying to prepare a NONMEM friendly dataset for population PK analysis. My patient IDs are 10 digit long and NONMEM is losing precison and rouding the last couple of digits. I need to generate unique Patient IDs fromt he current 10-digit IDs. Ihave total 250 subjects so I appreciate if anybody can suggest me a way to code this in R. Regards, Ayyappa [[alternative HTML version deleted]]

...orm(B)^2, -1) It works well for me (32bit intel/linux platform). But what about other processors/platforms/compilator options? Are there any better ways for finding out at which values the numerical problems start? Can one derive something from .Machine$double.eps (but what about the precison of dnorm and other analytic functions)? Thanks in advance, Ott

...gt; Thanking you, > Yours sincerely, > AKSHAY M KULKARNI Hmm... indeed, "conundrum" may be a euphemism for the situation..... which clearly points to a bug *somewhere*. As your dput() shows, the argument *is* a simple vector .. and even if the default dput() may loose a few bits in precison... you did show that with (possibly only almost) identical argument, the error did not happen. I really have no idea what's going on, .... Some musing/ideas: the NA/NaN/Inf warning may come from a memory corruption problem somewhere because some of the involved packages using compiled code o...

This patch supplies software IEEE floating point support. The comment from the patch reproduced below says all there is to say. This patch contains the prior "cleanup" patch; please don't apply that one. Please let me know of any bugs. It is tested reasonably well, but until I put together random tests it's hard to have 100% confidence. Neil. /* A self-contained host- and