Extreme Value Theory
4. Block maxima results – examples of
different limiting behaviour
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The limiting behaviours of many traditional distributions
are well-known. For example, block maxima values for the normal, log-normal and exponential
distributions converge to the Gumbel
distribution. Those for the Student’s t,
inverse gamma,
F and Pareto
distributions converge to the Fréchet
distribution.
 
Two examples where it is easy to derive the limiting
distributions are the exponential and the Pareto distribution:
 
Exponential
 
Suppose the underlying distribution is an exponential
distribution with distribution function  for
 for
 and
 and
 .
Then by choosing normalising sequences
.
Then by choosing normalising sequences  and
 and
 we
have:
 we
have:
 


 
So  .
.
 
Pareto
 
Suppose the underlying distribution is a Pareto distribution
 with
distribution function
 with
distribution function   for
 for
 and
 and
 .
Then by choosing the normalising sequences
.
Then by choosing the normalising sequences  and
 and
 we
have:
 we
have:
 


 
So  .
.
 
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