本文整理汇总了Python中sortedcontainers.SortedDict.viewkeys方法的典型用法代码示例。如果您正苦于以下问题：Python SortedDict.viewkeys方法的具体用法？Python SortedDict.viewkeys怎么用？Python SortedDict.viewkeys使用的例子？那么恭喜您, 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sortedcontainers.SortedDict的用法示例。
在下文中一共展示了SortedDict.viewkeys方法的2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: predict
# 需要导入模块: from sortedcontainers import SortedDict [as 别名]
# 或者: from sortedcontainers.SortedDict import viewkeys [as 别名]
def predict(self, X):
y = np.zeros(len(X))
for i,x in enumerate(X): # test points
sd = SortedDict() # distance -> class
for j,xt in enumerate(self.X): # training points
d = np.linalg.norm(x - xt)
# print d, sd
if len(sd) < self.k:
sd[d] = self.y[j]
else:
last = sd.viewkeys()[-1]
if d < last:
del sd[last]
sd[d] = self.y[j]
# print "sd:", sd
# vote
votes = {}
# print "viewvalues:", sd.viewvalues()
for v in sd.viewvalues():
# print "v:", v
votes[v] = votes.get(v,0) + 1
# print "votes:", votes, "true:", Ytest[i]
max_votes = 0
max_votes_class = -1
for v,count in votes.iteritems():
if count > max_votes:
max_votes = count
max_votes_class = v
y[i] = max_votes_class
return y示例2: DotMap
# 需要导入模块: from sortedcontainers import SortedDict [as 别名]
# 或者: from sortedcontainers.SortedDict import viewkeys [as 别名]
#.........这里部分代码省略.........
d[k] = v
return d
def pprint(self):
pprint(self.to_dict())
# proper dict subclassing
def values(self):
return self._map.values()
@staticmethod
def parse_other(other):
if type(other) is DotMap:
return other._map
else:
return other
def __cmp__(self, other):
other = DotMap.parse_other(other)
return self._map.__cmp__(other)
def __eq__(self, other):
other = DotMap.parse_other(other)
if not isinstance(other, dict):
return False
return self._map.__eq__(other)
def __ge__(self, other):
other = DotMap.parse_other(other)
return self._map.__ge__(other)
def __gt__(self, other):
other = DotMap.parse_other(other)
return self._map.__gt__(other)
def __le__(self, other):
other = DotMap.parseOther(other)
return self._map.__le__(other)
def __lt__(self, other):
other = DotMap.parse_other(other)
return self._map.__lt__(other)
def __ne__(self, other):
other = DotMap.parse_other(other)
return self._map.__ne__(other)
def __delitem__(self, key):
return self._map.__delitem__(key)
def __len__(self):
return self._map.__len__()
def copy(self):
return self
def get(self, key, default=None):
return self._map.get(key, default)
def has_key(self, key):
return key in self._map
def iterkeys(self):
return self._map.iterkeys()
def itervalues(self):
return self._map.itervalues()
def keys(self):
return self._map.keys()
def pop(self, key, default=None):
return self._map.pop(key, default)
def setdefault(self, key, default=None):
return self._map.setdefault(key, default)
def viewitems(self):
if version_info.major == 2 and version_info.minor >= 7:
return self._map.viewitems()
else:
return self._map.items()
def viewkeys(self):
if version_info.major == 2 and version_info.minor >= 7:
return self._map.viewkeys()
else:
return self._map.keys()
def viewvalues(self):
if version_info.major == 2 and version_info.minor >= 7:
return self._map.viewvalues()
else:
return self._map.values()
@classmethod
def fromkeys(cls, seq, value=None):
d = DotMap()
d._map = SortedDict.fromkeys(seq, value)
return d