Re: [R] Calculate negative log of the E-Values in R

2016-02-26 Thread John Sorkin
Actually E is not "just a computer way of saying 0". The E represents a power of 10, thus E-1 = 0.1 e-2=0.01; E therefore is not zero. Because computers generally can not perform exact calculations (for reasons including the fact that our number system is base 10 and a computer's is generally b

Re: [R] Calculate negative log of the E-Values in R

2016-02-26 Thread peter dalgaard
I do hope that was a joke! -pd > On 26 Feb 2016, at 18:16 , Francesco Romano > wrote: > > Sema, E is just a computer way of saying 0. For the purpose of statistical > analysis, if you can't compute a calculation with E values (i.e. 0), > substitute all E values with a usable constant, say 50.

Re: [R] Calculate negative log of the E-Values in R

2016-02-26 Thread Francesco Romano
Sema, E is just a computer way of saying 0. For the purpose of statistical analysis, if you can't compute a calculation with E values (i.e. 0), substitute all E values with a usable constant, say 50. I stumbled across a few websites lately that did this. Frank Romano Ph.D. *Academia.edu* https://

Re: [R] Calculate negative log of the E-Values in R

2016-02-26 Thread Uwe Ligges
On 26.02.2016 10:53, Sema Atasever wrote: Dear Authorized Sir / Madam, If you don't mind, I want to ask how can i calculate negative log of the E-Values in R. *For Example: * What is the negative log of the 4e-108? what about log(4e-108) ? (although I wonder if this is numerical sensible

[R] Calculate negative log of the E-Values in R

2016-02-26 Thread Sema Atasever
Dear Authorized Sir / Madam, If you don't mind, I want to ask how can i calculate negative log of the E-Values in R. *For Example: * What is the negative log of the 4e-108? I would appreciate if you could advise me some methods. Thanks in advance. [[alternative HTML version deleted]]