本文整理汇总了Python中pandas.core.computation.ops.BinOp方法的典型用法代码示例。如果您正苦于以下问题：Python ops.BinOp方法的具体用法？Python ops.BinOp怎么用？Python ops.BinOp使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pandas.core.computation.ops的用法示例。
在下文中一共展示了ops.BinOp方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: visit_Compare
# 需要导入模块: from pandas.core.computation import ops [as 别名]
# 或者: from pandas.core.computation.ops import BinOp [as 别名]
def visit_Compare(self, node, **kwargs):
ops = node.ops
comps = node.comparators
# base case: we have something like a CMP b
if len(comps) == 1:
op = self.translate_In(ops[0])
binop = ast.BinOp(op=op, left=node.left, right=comps[0])
return self.visit(binop)
# recursive case: we have a chained comparison, a CMP b CMP c, etc.
left = node.left
values = []
for op, comp in zip(ops, comps):
new_node = self.visit(ast.Compare(comparators=[comp], left=left,
ops=[self.translate_In(op)]))
left = comp
values.append(new_node)
return self.visit(ast.BoolOp(op=ast.And(), values=values)) 示例2: __init__
# 需要导入模块: from pandas.core.computation import ops [as 别名]
# 或者: from pandas.core.computation.ops import BinOp [as 别名]
def __init__(self, op, lhs, rhs, queryables, encoding):
super(BinOp, self).__init__(op, lhs, rhs)
self.queryables = queryables
self.encoding = encoding
self.filter = None
self.condition = None 示例3: prune
# 需要导入模块: from pandas.core.computation import ops [as 别名]
# 或者: from pandas.core.computation.ops import BinOp [as 别名]
def prune(self, klass):
def pr(left, right):
""" create and return a new specialized BinOp from myself """
if left is None:
return right
elif right is None:
return left
k = klass
if isinstance(left, ConditionBinOp):
if (isinstance(left, ConditionBinOp) and
isinstance(right, ConditionBinOp)):
k = JointConditionBinOp
elif isinstance(left, k):
return left
elif isinstance(right, k):
return right
elif isinstance(left, FilterBinOp):
if (isinstance(left, FilterBinOp) and
isinstance(right, FilterBinOp)):
k = JointFilterBinOp
elif isinstance(left, k):
return left
elif isinstance(right, k):
return right
return k(self.op, left, right, queryables=self.queryables,
encoding=self.encoding).evaluate()
left, right = self.lhs, self.rhs
if is_term(left) and is_term(right):
res = pr(left.value, right.value)
elif not is_term(left) and is_term(right):
res = pr(left.prune(klass), right.value)
elif is_term(left) and not is_term(right):
res = pr(left.value, right.prune(klass))
elif not (is_term(left) or is_term(right)):
res = pr(left.prune(klass), right.prune(klass))
return res