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

ot.Log.Show(ot.Log.NONE)

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	-2.346634	1.367485
1	-1.279833	0.3801989
2	1.09672	-0.04583323
3	2.298412	1.153096
4	0.7112375	0.06075101