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import pytest | ||
import scipy as sp | ||
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from mesmer.mesmer_x import Expression | ||
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inf = float("inf") | ||
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def test_expression_genextreme(): | ||
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expression_str = ( | ||
"genextreme(loc=c1 + c2 * __pred1__, scale=c3 + c4 * __pred2__**2, c=c5)" | ||
) | ||
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expr = Expression(expression_str, expr_name="name") | ||
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assert expr.expression == expression_str | ||
assert expr.expression_name == "name" | ||
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assert expr.distrib == sp.stats.genextreme | ||
assert not expr.is_distrib_discrete | ||
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assert expr.parameters_list == ["c", "loc", "scale"] | ||
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bounds = {"c": [-inf, inf], "loc": [-inf, inf], "scale": [0, inf]} | ||
assert expr.boundaries_parameters == bounds | ||
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param_expr = {"loc": "c1+c2*pred1", "scale": "c3+c4*pred2**2", "c": "c5"} | ||
assert expr.parameters_expressions == param_expr | ||
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coeffs = ["c1", "c2", "c3", "c4", "c5"] | ||
assert expr.coefficients_list == coeffs | ||
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coeffs_per_param = {"loc": ["c1", "c2"], "scale": ["c3", "c4"], "c": ["c5"]} | ||
assert expr.coefficients_dict == coeffs_per_param | ||
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def test_expression_norm(): | ||
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expression_str = "norm(loc=c1 + (c2 - c1) / ( 1 + np.exp(c3 * __GMT_t__ + c4 * __GMT_tm1__ - c5) ), scale=c6)" | ||
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expr = Expression(expression_str, expr_name="name") | ||
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assert expr.expression == expression_str | ||
assert expr.expression_name == "name" | ||
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assert expr.distrib == sp.stats.norm | ||
assert not expr.is_distrib_discrete | ||
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assert expr.parameters_list == ["loc", "scale"] | ||
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bounds = {"loc": [-inf, inf], "scale": [0, inf]} | ||
assert expr.boundaries_parameters == bounds | ||
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param_expr = {"loc": "c1+(c2-c1)/(1+np.exp(c3*GMT_t+c4*GMT_tm1-c5))", "scale": "c6"} | ||
assert expr.parameters_expressions == param_expr | ||
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coeffs = ["c1", "c2", "c3", "c4", "c5", "c6"] | ||
assert expr.coefficients_list == coeffs | ||
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coeffs_per_param = {"loc": ["c1", "c2", "c3", "c4", "c5"], "scale": ["c6"]} | ||
assert expr.coefficients_dict == coeffs_per_param | ||
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def test_expression_binom(): | ||
# a discrete distribution | ||
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expression_str = "binom(loc=c1, n=5, p=7)" | ||
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expr = Expression(expression_str, expr_name="name") | ||
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assert expr.expression == expression_str | ||
assert expr.expression_name == "name" | ||
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assert expr.distrib == sp.stats.binom | ||
assert not expr.is_distrib_discrete | ||
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assert expr.parameters_list == ["n", "p", "loc"] | ||
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bounds = {"n": [-inf, inf], "loc": [-inf, inf], "p": [-inf, inf]} | ||
assert expr.boundaries_parameters == bounds | ||
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param_expr = {"loc": "c1", "n": "5", "p": "7"} | ||
assert expr.parameters_expressions == param_expr | ||
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coeffs = ["c1"] | ||
assert expr.coefficients_list == coeffs | ||
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coeffs_per_param = {"loc": ["c1"], "n": [], "p": []} | ||
assert expr.coefficients_dict == coeffs_per_param | ||
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@pytest.mark.xfail(reason="https://github.com/MESMER-group/mesmer/issues/525") | ||
def test_expression_exponpow(): | ||
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expression_str = "exponpow(loc=c1, scale=c2+np.min([np.max(np.mean([__GMT_tm1__,__GMT_tp1__],axis=0)), math.gamma(__XYZ__)]), b=c3)" | ||
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expr = Expression(expression_str, expr_name="name") | ||
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assert expr.expression == expression_str | ||
assert expr.expression_name == "name" | ||
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assert expr.distrib == sp.stats.exponpow | ||
assert not expr.is_distrib_discrete | ||
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assert expr.parameters_list == ["loc", "scale"] | ||
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bounds = {"b": [inf, inf], "loc": [-inf, inf], "scale": [0, inf]} | ||
assert expr.boundaries_parameters == bounds | ||
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param_expr = { | ||
"loc": "c1", | ||
"scale": "c2+np.min([np.max(np.mean([GMT_tm1,GMT_tp1],axis=0))]", | ||
"b": "c3", | ||
} | ||
assert expr.parameters_expressions == param_expr | ||
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coeffs = ["c1", "c2", "c3", "c4", "c5", "c6"] | ||
assert expr.coefficients_list == coeffs | ||
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coeffs_per_param = {"loc": ["c1"], "scale": ["c2"], "b": ["c3"]} | ||
assert expr.coefficients_dict == coeffs_per_param |