CreateRandomValueGenerator

Récapitulatif

Creates a new random number generator.

Syntaxe

CreateRandomValueGenerator (seed, distribution)

Paramètre	Explication	Type de données
seed	Initializes the random number generator.	Integer
distribution	The random generation algorithm. ACM599 —ACM collected algorithm 599 MERSENNE_TWISTER —Mersenne Twister mt19937 STANDARD_C —Standard C Rand (La valeur par défaut est ACM599)	String

Valeur renvoyée

Type de données	Explication
Object	The RandomNumberGenerator object.

Exemple de code

CreateRandomValueGenerator example

Create and initialize random number generator object.

import arcpy
from arcpy import env

#   CreateRandomValueGenerator takes 2 arguments, seed and distribution method.
#   The distribution method options are ACM599, MERSENNE_TWISTER,
#   and STANDARD_C.
#
#   The gen variable is a randomNumberGenerator object that is assigned to
#   the randomGenerator environments setting.
#
env.randomGenerator = arcpy.CreateRandomValueGenerator(20, "STANDARD_C")

# Calculate a random number using the ArcGIS.Rand() function
#
result = arcpy.CalculateValue_management("arcgis.rand('normal 0.0 10.0')")

# Print the returned value from the Result object
#
val = float(result.getOutput(0))
print val