CreateRandomValueGenerator (arcpy)

サマリ

Creates a new random number generator.

構文

CreateRandomValueGenerator (seed, distribution)
パラメータ説明データ タイプ
seed

Initializes the random number generator.

Integer
distribution

The random generation algorithm.

  • ACM599ACM collected algorithm 599
  • MERSENNE_TWISTERMersenne Twister mt19937
  • STANDARD_CStandard C Rand

(デフォルト値は次のとおりです ACM599)

String
戻り値
データ タイプ説明
Object

The RandomNumberGenerator object.

コードのサンプル

CreateRandomValueGenerator example

Create and initialize random number generator object.

import arcpy

# 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.
arcpy.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
print(float(result.getOutput(0)))

関連トピック

4/26/2014