[R] how to figure out "skewness"

[ronggui]

you can transform the variable x "down the ladder" if it is positive
skew (x^0.5,x^ -1...)and  "up the ladder" if x is negative skew ( etc,
x^2 ,x^3...).

The book "An R and S-PLUS Companion To Applied Regression" has a
section to deal with the data transformation.Especiall P109 is about
transformation for normality and symmetry.

Hope this helps.

2006/4/10, Jian Zhang <jianz at clemson.edu>:
> I think it is simply, but I cannot find the method to figure out "skewness".
> Thanks!
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>


--
»ÆÈÙ¹ó
Deparment of Sociology
Fudan University