Hello,
> -----Original Message-----
> From: Andreas Pauling [SMTP:[EMAIL PROTECTED]
> Sent: Monday, March 29, 2004 4:02 PM
> To: [EMAIL PROTECTED]
> Subject: [R] strange thing with sd
>
>
> Shouldn't it give always zero?
>
I was running your example code, and I always had the result zero
(see below).
Best,
Roland
> sd(rep(0.01, 15)) #0
[1] 0
> sd(rep(0.001, 15)) #4.489023e-19
[1] 0
> sd(rep(0.00001, 15)) #0
[1] 0
> sd(rep(0.00000001,15)) #1.712427e-24
[1] 0
>
> sd(rep(0.01, 13)) #1.805557e-18
[1] 0
> sd(rep(0.001, 13)) #4.513894e-19
[1] 0
> sd(rep(0.00001, 13)) #0
[1] 0
> sd(rep(0.00000001,13)) #0
[1] 0
>
> sd(rep(5.01, 15)) #0
[1] 0
> sd(rep(5.001, 15)) #4.489023e-19
[1] 0
> sd(rep(5.00001, 15)) #1.838704e-15
[1] 0
> sd(rep(5.00000001,15)) #9.19352e-16
[1] 0
>
> sd(rep(5.01, 13)) #9.244454e-16
[1] 0
> sd(rep(5.001, 13)) #9.244454e-16
[1] 0
> sd(rep(5.00001, 13)) #1.848891e-15
[1] 0
> sd(rep(5.00000001,13)) #0
[1] 0
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 1
minor 8.1
year 2003
month 11
day 21
language R
>
+++++
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