Composite random vector

In this example we are going to create a random variable which realizations are the images of the realizations of another random vector by a function.

import openturns as ot

Create a random vector based on a distribution

dist2d = ot.Normal(2)
X = ot.RandomVector(dist2d)

Create the function

f = ot.SymbolicFunction(["x1", "x2"], ["x1 + x2", "x1*x2"])
f

[x1,x2]->[x1 + x2,x1*x2]

Create the composite random vector

Y = ot.CompositeRandomVector(f, X)

Y.getSample(5)

	y0	y1
0	-0.6579715	-0.7700886
1	0.7672126	-0.5283197
2	-1.831343	-0.7635766
3	1.082242	-0.5102336
4	1.603824	0.6429862