本文整理汇总了Python中pandas.core.common.sentinel_factory方法的典型用法代码示例。如果您正苦于以下问题：Python common.sentinel_factory方法的具体用法？Python common.sentinel_factory怎么用？Python common.sentinel_factory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pandas.core.common的用法示例。
在下文中一共展示了common.sentinel_factory方法的4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: _get_level_lengths
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import sentinel_factory [as 别名]
def _get_level_lengths(index):
"""
Given an index, find the level lenght for each element.
Result is a dictionary of (level, inital_position): span
"""
sentinel = sentinel_factory()
levels = index.format(sparsify=sentinel, adjoin=False, names=False)
if index.nlevels == 1:
return {(0, i): 1 for i, value in enumerate(levels)}
lengths = {}
for i, lvl in enumerate(levels):
for j, row in enumerate(lvl):
if not get_option('display.multi_sparse'):
lengths[(i, j)] = 1
elif row != sentinel:
last_label = j
lengths[(i, last_label)] = 1
else:
lengths[(i, last_label)] += 1
return lengths 示例2: _get_level_lengths
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import sentinel_factory [as 别名]
def _get_level_lengths(index, hidden_elements=None):
"""
Given an index, find the level length for each element.
Optional argument is a list of index positions which
should not be visible.
Result is a dictionary of (level, inital_position): span
"""
sentinel = com.sentinel_factory()
levels = index.format(sparsify=sentinel, adjoin=False, names=False)
if hidden_elements is None:
hidden_elements = []
lengths = {}
if index.nlevels == 1:
for i, value in enumerate(levels):
if(i not in hidden_elements):
lengths[(0, i)] = 1
return lengths
for i, lvl in enumerate(levels):
for j, row in enumerate(lvl):
if not get_option('display.multi_sparse'):
lengths[(i, j)] = 1
elif (row != sentinel) and (j not in hidden_elements):
last_label = j
lengths[(i, last_label)] = 1
elif (row != sentinel):
# even if its hidden, keep track of it in case
# length >1 and later elements are visible
last_label = j
lengths[(i, last_label)] = 0
elif(j not in hidden_elements):
lengths[(i, last_label)] += 1
non_zero_lengths = {
element: length for element, length in lengths.items() if length >= 1}
return non_zero_lengths 示例3: _get_level_lengths
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import sentinel_factory [as 别名]
def _get_level_lengths(index, hidden_elements=None):
"""
Given an index, find the level length for each element.
Optional argument is a list of index positions which
should not be visible.
Result is a dictionary of (level, inital_position): span
"""
sentinel = com.sentinel_factory()
levels = index.format(sparsify=sentinel, adjoin=False, names=False)
if hidden_elements is None:
hidden_elements = []
lengths = {}
if index.nlevels == 1:
for i, value in enumerate(levels):
if(i not in hidden_elements):
lengths[(0, i)] = 1
return lengths
for i, lvl in enumerate(levels):
for j, row in enumerate(lvl):
if not get_option('display.multi_sparse'):
lengths[(i, j)] = 1
elif (row != sentinel) and (j not in hidden_elements):
last_label = j
lengths[(i, last_label)] = 1
elif (row != sentinel):
# even if its hidden, keep track of it in case
# length >1 and later elements are visible
last_label = j
lengths[(i, last_label)] = 0
elif(j not in hidden_elements):
lengths[(i, last_label)] += 1
non_zero_lengths = {}
for element, length in lengths.items():
if(length >= 1):
non_zero_lengths[element] = length
return non_zero_lengths 示例4: _write_hierarchical_rows
# 需要导入模块: from pandas.core import common [as 别名]
# 或者: from pandas.core.common import sentinel_factory [as 别名]
def _write_hierarchical_rows(self, fmt_values, indent):
template = 'rowspan="%d" valign="top"'
frame = self.frame
ncols = min(len(self.columns), self.max_cols)
nrows = min(len(self.frame), self.max_rows)
truncate = (len(frame) > self.max_rows)
idx_values = frame.index[:nrows].format(sparsify=False, adjoin=False,
names=False)
idx_values = lzip(*idx_values)
if self.fmt.sparsify:
# GH3547
sentinel = com.sentinel_factory()
levels = frame.index[:nrows].format(sparsify=sentinel,
adjoin=False, names=False)
# Truncate row names
if truncate:
levels = [lev[:self.max_rows] for lev in levels]
level_lengths = _get_level_lengths(levels, sentinel)
for i in range(min(len(frame), self.max_rows)):
row = []
tags = {}
sparse_offset = 0
j = 0
for records, v in zip(level_lengths, idx_values[i]):
if i in records:
if records[i] > 1:
tags[j] = template % records[i]
else:
sparse_offset += 1
continue
j += 1
row.append(v)
row.extend(fmt_values[j][i] for j in range(ncols))
self.write_tr(row, indent, self.indent_delta, tags=tags,
nindex_levels=len(levels) - sparse_offset)
else:
for i in range(len(frame)):
idx_values = list(zip(*frame.index.format(sparsify=False,
adjoin=False,
names=False)))
row = []
row.extend(idx_values[i])
row.extend(fmt_values[j][i] for j in range(ncols))
self.write_tr(row, indent, self.indent_delta, tags=None,
nindex_levels=frame.index.nlevels)
# Truncation markers (...)
if truncate:
row = ([''] * frame.index.nlevels) + (['...'] * ncols)
self.write_tr(row, indent, self.indent_delta, tags=None)