def from_materials(cls, materials):
multi_index_tuples = set([])
for material in materials:
multi_index_tuples.update([cls.id_to_tuple(key)
for key in material.keys()])
index = pd.MultiIndex.from_tuples(
multi_index_tuples, names=['atomic_number', 'mass_number'])
abundances = pd.DataFrame(data=0.0, index=index, columns=range(len(materials)))
for i, material in enumerate(materials):
for key, value in material.items():
abundances.loc[cls.id_to_tuple(key), i] = value
return cls(abundances)
def from_materials(cls, materials):
multi_index_tuples = set([])
for material in materials:
multi_index_tuples.update(
[cls.id_to_tuple(key) for key in material.keys()])
index = pd.MultiIndex.from_tuples(
multi_index_tuples, names=['atomic_number', 'mass_number'])
abundances = pd.DataFrame(data=0.0,
index=index,
columns=range(len(materials)))
for i, material in enumerate(materials):
for key, value in material.items():
abundances.loc[cls.id_to_tuple(key), i] = value
return cls(abundances)