Only SecondMoment seems to be a public class

[axkr]

Only SecondMoment seems to be a public class.

Is there an example how to use FourthMoment, ThirdMoment,..?

For example:

• hipparchus/hipparchus-stat/src/main/java/org/hipparchus/stat/descriptive/moment/FourthMoment.java

  Line 60 in 2c4d3b2

  class FourthMoment extends ThirdMoment implements Serializable{

Typo here in line 70?

• hipparchus/hipparchus-stat/src/main/java/org/hipparchus/stat/descriptive/moment/ThirdMoment.java

  Line 70 in 2c4d3b2

  * Create a FourthMoment instance.

[maisonobe]

For ThirdMoment, the public corresponding class seem to be Skewness, and for FourthMoment it is Kurtosis.
I confirm the typo.