Merge branch 'develop' into 'master'

CHANGELOG.md

examples/OHagan-function/example_OHagan.py

examples/analytical-function/example_analytical_function.py

examples/analytical-function/util/AnalytFuncValid_Test.py

examples/analytical-function/util/AnalyticFunc_Demo.py

examples/analytical-function/util/AnalyticalFunction.py

examples/analytical-function/util/PCE_vs_Chaospy.py

examples/analytical-function/util/Psi_BayesValidRox.npy

examples/analytical-function/util/Psi_Chaospy.npy

...nction/util/__pycache__/AnalyticalFunction.cpython-38.pyc

examples/analytical-function/util/dynamic_image.py

examples/analytical-function/util/indices_bayesValid.npy

examples/analytical-function/util/indices_chaospy.npy

examples/analytical-function/util/svg_gif.py

examples/beam/Beam9points_1/SSBeam_Deflection_1.inp

examples/beam/example_beam.py

examples/borehole/borehole.py

examples/borehole/example_borehole.py

examples/convergence_tests/convergence_test.py

examples/convergence_tests/example_trainingconvergence.py