[R] about comparison of KURTOSIS in package: moments and fBasics

[klebyn]

Hello



I do not know very much about statistics (and English language too :-( ),
then I come in search of a clarification (explanation):

I found two distinct results on KURTOSIS and
I do not know which of them is the correct one.
Any aid will be welcome!


klebyn



################  CODE

rnorm(1000) -> x

library(moments)

kurtosis(x)
skewness(x)

detach("package:moments")
library(fBasics)

kurtosis(x)
skewness(x)

detach("package:fBasics")

R.version

################  OUTPUT

 >
 > rnorm(1000) -> x
 >
 >
 > library(moments)
 >
 >
 > kurtosis(x)
[1] 3.145274
 > skewness(x)
[1] 0.04898635
 >
 >
 > detach("package:moments")
 > library(fBasics)

Rmetrics, (C) 1999-2005, Diethelm Wuertz, GPL
fBasics: Markets, Basic Statistics, Hypothesis Testing
 >
 >
 > kurtosis(x)
[1] 0.1389865
 > skewness(x)
[1] 0.04891289
 >
 >
 > detach("package:fBasics")
 >
 > R.version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    2              
minor    2.0            
year     2005           
month    10             
day      06             
svn rev  35749          
language R              
 >
 >