Hello,
 
  I found that round() does not behave as I expected.
  Have you had similar experience as following?
 
> x<-seq(0.5,10.5,by=1)
> x
 [1]  0.5  1.5  2.5  3.5  4.5  5.5  6.5  7.5  8.5  9.5 10.5
> round(x)
 [1]  0  2  2  4  4  6  6  8  8 10 10
> cbind(x,round(x))
         x   
 [1,]  0.5  0
 [2,]  1.5  2
 [3,]  2.5  2
 [4,]  3.5  4
 [5,]  4.5  4
 [6,]  5.5  6
 [7,]  6.5  6
 [8,]  7.5  8
 [9,]  8.5  8
[10,]  9.5 10
[11,] 10.5 10

 
  Is this a well-known bug?
 
Thanks in advance,
 
 
Dongseok Choi, Ph.D.
Assistant Professor
Division of Biostatistics
Department of Public Health & Preventive Medicine
Oregon Health & Science University
3181 SW Sam Jackson Park Road, CB-669
Portland, OR 97239-3098
TEL) 503-494-5336
FAX) 503-494-4981
[EMAIL PROTECTED]

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