Dear all,

 

I am totally confused by the following R output, but don't have a clue
for it.

 

> a <- 1 - 0.2

> a == 0.8

[1] TRUE

> a <- 1 - 0.8

> a == 0.2

[1] FALSE

> a <- 1 - 0.5

> a == 0.5

[1] TRUE

> a <- 1 - 0.6

> a == 0.4

[1] TRUE

> a <- 1 - 0.9

> a == 0.1

[1] FALSE

 

 

My R version is Windows XP R version 2.8.1 (2008-12-22).

 

Thanks very much.

 

 

Changhong


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