[Rd] qbinom when probability is 1 (PR#5900)

[jonathan-cran at swintons.net]

Full_Name: Jonathan Swinton
Version: 1.8.0
OS: Windows 2000
Submission from: (NULL) (193.132.159.34)


Calling qbinom with a sample probability of 1 returns NaN
> qbinom(p=0.95,size=10,prob=1)
[1] NaN

I believe that this is wrong and that qbinom(p,size,prob=1) should always be
size for 0<p<=1.

The documentation says that 

 The quantile is defined as the smallest value x such that F(x) >=
     p, where F is the distribution function. 



Version:
 platform = i386-pc-mingw32
 arch = i386
 os = mingw32
 system = i386, mingw32
 status = 
 major = 1
 minor = 8.0
 year = 2003
 month = 10
 day = 08
 language = R

Windows 2000 Professional (build 2195) Service Pack 3.0

Search Path:
 .GlobalEnv, package:lattice, package:Hmisc, package:XML, package:graph,
package:methods, package:ctest, package:mva, package:modreg, package:nls,
package:ts, Autoloads, package:base