Note
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Rosenbrock dataset¶
This Dataset contains 100 evaluations
of the well-known Rosenbrock function:
\[f(x,y)=(1-x)^2+100(y-x^2)^2\]
This function is known for its global minimum at point (1,1), its banana valley and the difficulty to reach its minimum.
This Dataset is based on a full-factorial
design of experiments.
More information about the Rosenbrock function
from __future__ import annotations
from gemseo import configure_logger
from gemseo import create_benchmark_dataset
from gemseo.post.dataset.yvsx import YvsX
from gemseo.post.dataset.zvsxy import ZvsXY
configure_logger()
<RootLogger root (INFO)>
Load Rosenbrock dataset¶
We can easily load this dataset
by means of the high-level function create_benchmark_dataset():
dataset = create_benchmark_dataset("RosenbrockDataset")
dataset
Show the design data¶
dataset.design_dataset
Show the objective data¶
dataset.objective_dataset
Load the data with an input-output naming¶
dataset = create_benchmark_dataset("RosenbrockDataset", opt_naming=False)
dataset
Plot the data¶
ZvsXY(dataset, x=("x", 0), y=("x", 1), z="rosen").execute(save=False, show=True)
YvsX(dataset, x=("x", 0), y="rosen").execute(save=False, show=True)
[<Figure size 640x480 with 1 Axes>]
Total running time of the script: (0 minutes 0.339 seconds)