Note

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Create an aggregated functionΒΆ

In this example we are going to build a function that stacks all the outputs from several functions

f = (f_1, \dots, f_n)

import openturns as ot

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

assume a list of functions to aggregate

functions = list()
functions.append(ot.SymbolicFunction(["x1", "x2", "x3"], ["x1^2 + x2", "x1 + x2 + x3"]))
functions.append(
    ot.SymbolicFunction(["x1", "x2", "x3"], ["x1 + 2 * x2 + x3", "x1 + x2 - x3"])
)

create the aggregated function

function = ot.AggregatedFunction(functions)

evaluate the function

x = [1.0, 2.0, 3.0]
y = function(x)
print("x=", x, "y=", y)

x= [1.0, 2.0, 3.0] y= [3,6,8,0]