[R] Why does a[which(b == c[d])] not work?

[Peter Dalgaard BSA]

Thomas Bock <Thomas.Bock at ptb.de> writes:

> Dear list,
> 
> I can not understand why the expression in
> the subject does not work correct:
> 
>  > dcrn[which(fn == inve[2])]
> numeric(0)
>  > inve[2]
> [1] 406.7
>  > dcrn[which(fn == 406.7)]
>  [1] 1.3994e-07 1.3988e-07 1.3953e-07 1.3966e-07 1.3953e-07 1.3968e-07
> 
> Is this a kick self problem or an bug?

Kick self, most likely. What is 

inve[2] - 406.7

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
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