Update .Rhistory

Author: xieguigang

REnv/.Rhistory

@@ -98,3 +98,38 @@ kurtosis(data,type=1)
 kurtosis(data,type=2)
 kurtosis(data,type=3)
 q()
+require(e1071)
+help(kurtosis)
+help(skewness)
+help(skewness)
+data = c(2, 4, 4, 4, 5, 5, 7, 9);
+kurtosis(data,type =1);
+kurtosis(data,type =2);
+kurtosis(data,type =3);
+data = c(2, 4, 4, 4, 5, 5, 7, 9)
+skewness(data,type = 1);
+skewness(data,type = 2);
+skewness(data,type = 3);
+library(moments)
+install.packages
+install.packages("moments")
+library(moments)
+x = dara
+x=data
+x
+moment(x, order=2, center=FALSE)
+moment(x)
+help(moment)
+all.moments(x)
+help(moment)
+help(moment)
+data = c(2, 4, 4, 4, 5, 5, 7, 9);
+moment(data, 2);
+moment(data, 2, central=TRUE);
+moment(data, 3);
+moment(data, 3, central=TRUE);
+help(rexp)
+help("rep")
+sum = 0
+for(i in 1:100) { sum=sum + 0.1 }
+sum