本文整理汇总了Python中matplotlib.cbook.align_iterators方法的典型用法代码示例。如果您正苦于以下问题：Python cbook.align_iterators方法的具体用法？Python cbook.align_iterators怎么用？Python cbook.align_iterators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matplotlib.cbook的用法示例。
在下文中一共展示了cbook.align_iterators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: recs_join
# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import align_iterators [as 别名]
def recs_join(key, name, recs, jointype='outer', missing=0., postfixes=None):
"""
Join a sequence of record arrays on single column key.
This function only joins a single column of the multiple record arrays
*key*
is the column name that acts as a key
*name*
is the name of the column that we want to join
*recs*
is a list of record arrays to join
*jointype*
is a string 'inner' or 'outer'
*missing*
is what any missing field is replaced by
*postfixes*
if not None, a len recs sequence of postfixes
returns a record array with columns [rowkey, name0, name1, ... namen-1].
or if postfixes [PF0, PF1, ..., PFN-1] are supplied,
[rowkey, namePF0, namePF1, ... namePFN-1].
Example::
r = recs_join("date", "close", recs=[r0, r1], missing=0.)
"""
results = []
aligned_iters = cbook.align_iterators(operator.attrgetter(key), *[iter(r) for r in recs])
def extract(r):
if r is None: return missing
else: return r[name]
if jointype == "outer":
for rowkey, row in aligned_iters:
results.append([rowkey] + map(extract, row))
elif jointype == "inner":
for rowkey, row in aligned_iters:
if None not in row: # throw out any Nones
results.append([rowkey] + map(extract, row))
if postfixes is None:
postfixes = ['%d'%i for i in range(len(recs))]
names = ",".join([key] + ["%s%s" % (name, postfix) for postfix in postfixes])
return np.rec.fromrecords(results, names=names) 示例2: recs_join
# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import align_iterators [as 别名]
def recs_join(key, name, recs, jointype='outer', missing=0., postfixes=None):
"""
Join a sequence of record arrays on single column key.
This function only joins a single column of the multiple record arrays
*key*
is the column name that acts as a key
*name*
is the name of the column that we want to join
*recs*
is a list of record arrays to join
*jointype*
is a string 'inner' or 'outer'
*missing*
is what any missing field is replaced by
*postfixes*
if not None, a len recs sequence of postfixes
returns a record array with columns [rowkey, name0, name1, ... namen-1].
or if postfixes [PF0, PF1, ..., PFN-1] are supplied,
[rowkey, namePF0, namePF1, ... namePFN-1].
Example::
r = recs_join("date", "close", recs=[r0, r1], missing=0.)
"""
results = []
aligned_iters = cbook.align_iterators(operator.attrgetter(key), *[iter(r) for r in recs])
def extract(r):
if r is None: return missing
else: return r[name]
if jointype == "outer":
for rowkey, row in aligned_iters:
results.append([rowkey] + list(map(extract, row)))
elif jointype == "inner":
for rowkey, row in aligned_iters:
if None not in row: # throw out any Nones
results.append([rowkey] + list(map(extract, row)))
if postfixes is None:
postfixes = ['%d'%i for i in range(len(recs))]
names = ",".join([key] + ["%s%s" % (name, postfix) for postfix in postfixes])
return np.rec.fromrecords(results, names=names) 示例3: recs_join
# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import align_iterators [as 别名]
def recs_join(key, name, recs, jointype='outer', missing=0., postfixes=None):
"""
Join a sequence of record arrays on single column key.
This function only joins a single column of the multiple record arrays
*key*
is the column name that acts as a key
*name*
is the name of the column that we want to join
*recs*
is a list of record arrays to join
*jointype*
is a string 'inner' or 'outer'
*missing*
is what any missing field is replaced by
*postfixes*
if not None, a len recs sequence of postfixes
returns a record array with columns [rowkey, name0, name1, ... namen-1].
or if postfixes [PF0, PF1, ..., PFN-1] are supplied,
[rowkey, namePF0, namePF1, ... namePFN-1].
Example::
r = recs_join("date", "close", recs=[r0, r1], missing=0.)
"""
results = []
aligned_iters = cbook.align_iterators(operator.attrgetter(key),
*[iter(r) for r in recs])
def extract(r):
if r is None:
return missing
else:
return r[name]
if jointype == "outer":
for rowkey, row in aligned_iters:
results.append([rowkey] + list(map(extract, row)))
elif jointype == "inner":
for rowkey, row in aligned_iters:
if None not in row: # throw out any Nones
results.append([rowkey] + list(map(extract, row)))
if postfixes is None:
postfixes = ['%d' % i for i in range(len(recs))]
names = ",".join([key] + ["%s%s" % (name, postfix)
for postfix in postfixes])
return np.rec.fromrecords(results, names=names)