Source code for gmql.dataset.DataStructures.ExpressionNodes
from .MetaField import MetaField
from .RegField import RegField
[docs]def SQRT(argument):
""" Computes the square matrix of the argument
:param argument: a dataset region field (dataset.field) or metadata (dataset['field'])
"""
if isinstance(argument, MetaField):
return argument._unary_expression("SQRT")
elif isinstance(argument, RegField):
return argument._unary_expression("SQRT")
else:
raise TypeError("You have to give as input a RegField (dataset.field)"
"or a MetaField (dataset['field']")