本文整理汇总了Python中biom.table.Table.from_json方法的典型用法代码示例。如果您正苦于以下问题：Python Table.from_json方法的具体用法？Python Table.from_json怎么用？Python Table.from_json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biom.table.Table的用法示例。
在下文中一共展示了Table.from_json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: parse_biom_table
# 需要导入模块: from biom.table import Table [as 别名]
# 或者: from biom.table.Table import from_json [as 别名]
def parse_biom_table(fp, input_is_dense=False):
try:
return Table.from_hdf5(fp)
except:
pass
if hasattr(fp, 'read'):
return Table.from_json(json.load(fp), input_is_dense=input_is_dense)
elif isinstance(fp, list):
return Table.from_json(json.loads(''.join(fp)),
input_is_dense=input_is_dense)
else:
return Table.from_json(json.loads(fp), input_is_dense=input_is_dense)示例2: load_BIOM
# 需要导入模块: from biom.table import Table [as 别名]
# 或者: from biom.table.Table import from_json [as 别名]
def load_BIOM(table, informat='json', v=1):
"""
load a BIOM table from BIOM format. Default format is 'json'.
"""
from biom.table import Table
import json
import sys
informats = ['json','tsv']
if not informat in informats:
print "\nPlease specify a valid BIOM input format. Currently we support: '%s'.\n" %"', '".join(informats)
else:
if v:
print "\nSpecified BIOM input format '%s' - ok!" %(informat)
if informat == 'json':
with open(table) as data_file:
data = json.load(data_file)
t = Table.from_json(data)
elif informat == 'tsv':
tsv = open(in_tsv)
func = lambda x : x
t = Table.from_tsv(tsv, obs_mapping=None, sample_mapping=None, process_func=func)
tsv.close()
return t示例3: parse_biom_table
# 需要导入模块: from biom.table import Table [as 别名]
# 或者: from biom.table.Table import from_json [as 别名]
def parse_biom_table(fp, ids=None, axis='sample', input_is_dense=False):
r"""Parses the biom table stored in the filepath `fp`
Parameters
----------
fp : file like
File alike object storing the BIOM table
ids : iterable
The sample/observation ids of the samples/observations that we need
to retrieve from the biom table
axis : {'sample', 'observation'}, optional
The axis to subset on
input_is_dense : boolean
Indicates if the BIOM table is dense or sparse. Valid only for JSON
tables.
Returns
-------
Table
The BIOM table stored at fp
Raises
------
ValueError
If `samples` and `observations` are provided.
Notes
-----
Subsetting from the BIOM table is only supported in one axis
Examples
--------
Parse a hdf5 biom table
>>> from h5py import File # doctest: +SKIP
>>> from biom.parse import parse_biom_table
>>> f = File('rich_sparse_otu_table_hdf5.biom') # doctest: +SKIP
>>> t = parse_biom_table(f) # doctest: +SKIP
Parse a hdf5 biom table subsetting observations
>>> from h5py import File # doctest: +SKIP
>>> from biom.parse import parse_biom_table
>>> f = File('rich_sparse_otu_table_hdf5.biom') # doctest: +SKIP
>>> t = parse_biom_table(f, ids=["GG_OTU_1"],
... axis='observation') # doctest: +SKIP
"""
if axis not in ['observation', 'sample']:
UnknownAxisError(axis)
try:
return Table.from_hdf5(fp, ids=ids, axis=axis)
except ValueError:
pass
except RuntimeError:
pass
if hasattr(fp, 'read'):
old_pos = fp.tell()
# Read in characters until first non-whitespace
# If it is a {, then this is (most likely) JSON
c = fp.read(1)
while c.isspace():
c = fp.read(1)
if c == '{':
fp.seek(old_pos)
t = Table.from_json(json.load(fp, object_pairs_hook=OrderedDict),
input_is_dense=input_is_dense)
else:
fp.seek(old_pos)
t = Table.from_tsv(fp, None, None, lambda x: x)
elif isinstance(fp, list):
try:
t = Table.from_json(json.loads(''.join(fp),
object_pairs_hook=OrderedDict),
input_is_dense=input_is_dense)
except ValueError:
t = Table.from_tsv(fp, None, None, lambda x: x)
else:
t = Table.from_json(json.loads(fp, object_pairs_hook=OrderedDict),
input_is_dense=input_is_dense)
def subset_ids(data, id_, md):
return id_ in ids
def gt_zero(vals, id_, md):
return np.any(vals)
if ids is not None:
t.filter(subset_ids, axis=axis)
axis = 'observation' if axis == 'sample' else 'sample'
t.filter(gt_zero, axis=axis)
return t示例4: parse_biom_table
# 需要导入模块: from biom.table import Table [as 别名]
# 或者: from biom.table.Table import from_json [as 别名]
def parse_biom_table(fp, ids=None, axis='sample', input_is_dense=False):
r"""Parses the biom table stored in the filepath `fp`
Parameters
----------
fp : file like
File alike object storing the BIOM table
ids : iterable
The sample/observation ids of the samples/observations that we need
to retrieve from the biom table
axis : {'sample', 'observation'}, optional
The axis to subset on
input_is_dense : boolean
Indicates if the BIOM table is dense or sparse. Valid only for JSON
tables.
Returns
-------
Table
The BIOM table stored at fp
Raises
------
ValueError
If `samples` and `observations` are provided.
Notes
-----
Subsetting from the BIOM table is only supported in one axis
Examples
--------
Parse a hdf5 biom table
>>> from h5py import File # doctest: +SKIP
>>> from biom.parse import parse_biom_table
>>> f = File('rich_sparse_otu_table_hdf5.biom') # doctest: +SKIP
>>> t = parse_biom_table(f) # doctest: +SKIP
Parse a hdf5 biom table subsetting observations
>>> from h5py import File # doctest: +SKIP
>>> from biom.parse import parse_biom_table
>>> f = File('rich_sparse_otu_table_hdf5.biom') # doctest: +SKIP
>>> t = parse_biom_table(f, ids=["GG_OTU_1"],
... axis='observation') # doctest: +SKIP
"""
if axis not in ['observation', 'sample']:
UnknownAxisError(axis)
try:
return Table.from_hdf5(fp, ids=ids, axis=axis)
except:
pass
if hasattr(fp, 'read'):
old_pos = fp.tell()
try:
t = Table.from_json(json.load(fp), input_is_dense=input_is_dense)
except ValueError:
fp.seek(old_pos)
t = Table.from_tsv(fp, None, None, lambda x: x)
elif isinstance(fp, list):
try:
t = Table.from_json(json.loads(''.join(fp)),
input_is_dense=input_is_dense)
except ValueError:
t = Table.from_tsv(fp, None, None, lambda x: x)
else:
t = Table.from_json(json.loads(fp), input_is_dense=input_is_dense)
if ids is not None:
f = lambda data, id_, md: id_ in ids
t.filter(f, axis=axis)
axis = 'observation' if axis == 'sample' else 'sample'
f = lambda vals, id_, md: np.any(vals)
t.filter(f, axis=axis)
return t