[Numpy-discussion] Permutations in Simulations`

Mark Janikas mjanikas@esri....
Tue Feb 10 13:29:07 CST 2009

Hello All,

I want to create an array that contains a column of permutations for each simulation:

import numpy as NUM
import numpy.random as RAND
x = NUM.arange(4.)
res = NUM.zeros((4,100))

for sim in range(100):
res[:,sim] = RAND.permutation(x)

Is there a way to do this without a loop?  Thanks so much ahead of time...


Mark Janikas
Product Engineer
ESRI, Geoprocessing
380 New York St.
Redlands, CA 92373
909-793-2853 (2563)
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