Sampler

A sampler determines a value z according to a cdf F and assigns it to a Geovalue. Different methods are possible. The most used is Monte-Carlo simulation: a new value is drawn randomly from cdf F and assigned to the Geovalue. Other sampler can be defined:

• Metropolis Sampling: a value is drawn randomly from F but has a probability of being rejected. If it is rejected, the property value of the Geovalue remains unchanged.
• Quantile Sampling: always draw the same quantile from the cdf.

The sampler could also modify the cdf before drawing from it.

Associated Types

• Return Type

  A::return_type

  The type convertible to int.

Refinement of

Assignable

Notations

a		an object of a type that models Sampler
c		An object of a type that is a model of CDF
g		An object of a type that is a model of Geovalue

Valid Expressions

• Draw Realization

  a(g,c)

  Return type:		int
  Semantics:		Assigns a value to g given cdf c. Returns 0 if successful

Models

• Monte_carlo_sampler

  Draws a value from a cdf using Monte-Carlo simulation.

• Quantile_sampler

  Returns a given quantile of the cdf.