gpt4free-original/venv/lib/python3.9/site-packages/pandas/_libs/algos_take_helper.pxi.in

223 行
6.0 KiB
Cython

"""
Template for each `dtype` helper function for take
WARNING: DO NOT edit .pxi FILE directly, .pxi is generated from .pxi.in
"""
# ----------------------------------------------------------------------
# take_1d, take_2d
# ----------------------------------------------------------------------
{{py:
# c_type_in, c_type_out
dtypes = [
('uint8_t', 'uint8_t'),
('uint8_t', 'object'),
('int8_t', 'int8_t'),
('int8_t', 'int32_t'),
('int8_t', 'int64_t'),
('int8_t', 'float64_t'),
('int16_t', 'int16_t'),
('int16_t', 'int32_t'),
('int16_t', 'int64_t'),
('int16_t', 'float64_t'),
('int32_t', 'int32_t'),
('int32_t', 'int64_t'),
('int32_t', 'float64_t'),
('int64_t', 'int64_t'),
('int64_t', 'float64_t'),
('float32_t', 'float32_t'),
('float32_t', 'float64_t'),
('float64_t', 'float64_t'),
('object', 'object'),
]
def get_dispatch(dtypes):
for (c_type_in, c_type_out) in dtypes:
def get_name(dtype_name):
if dtype_name == "object":
return "object"
if dtype_name == "uint8_t":
return "bool"
return dtype_name[:-2]
name = get_name(c_type_in)
dest = get_name(c_type_out)
args = dict(name=name, dest=dest, c_type_in=c_type_in,
c_type_out=c_type_out)
yield (name, dest, c_type_in, c_type_out)
}}
{{for name, dest, c_type_in, c_type_out in get_dispatch(dtypes)}}
@cython.wraparound(False)
@cython.boundscheck(False)
{{if c_type_in != "object"}}
def take_1d_{{name}}_{{dest}}(const {{c_type_in}}[:] values,
{{else}}
def take_1d_{{name}}_{{dest}}(ndarray[{{c_type_in}}, ndim=1] values,
{{endif}}
const intp_t[:] indexer,
{{c_type_out}}[:] out,
fill_value=np.nan):
cdef:
Py_ssize_t i, n, idx
{{c_type_out}} fv
n = indexer.shape[0]
fv = fill_value
{{if c_type_out != "object"}}
with nogil:
{{else}}
if True:
{{endif}}
for i in range(n):
idx = indexer[i]
if idx == -1:
out[i] = fv
else:
{{if c_type_in == "uint8_t" and c_type_out == "object"}}
out[i] = True if values[idx] > 0 else False
{{else}}
out[i] = values[idx]
{{endif}}
@cython.wraparound(False)
@cython.boundscheck(False)
{{if c_type_in != "object"}}
def take_2d_axis0_{{name}}_{{dest}}(const {{c_type_in}}[:, :] values,
{{else}}
def take_2d_axis0_{{name}}_{{dest}}(ndarray[{{c_type_in}}, ndim=2] values,
{{endif}}
ndarray[intp_t, ndim=1] indexer,
{{c_type_out}}[:, :] out,
fill_value=np.nan):
cdef:
Py_ssize_t i, j, k, n, idx
{{c_type_out}} fv
{{if c_type_in == c_type_out != "object"}}
const {{c_type_out}} *v
{{c_type_out}} *o
{{endif}}
n = len(indexer)
k = values.shape[1]
fv = fill_value
{{if c_type_in == c_type_out != "object"}}
# GH#3130
if (values.strides[1] == out.strides[1] and
values.strides[1] == sizeof({{c_type_out}}) and
sizeof({{c_type_out}}) * n >= 256):
for i in range(n):
idx = indexer[i]
if idx == -1:
for j in range(k):
out[i, j] = fv
else:
v = &values[idx, 0]
o = &out[i, 0]
memmove(o, v, <size_t>(sizeof({{c_type_out}}) * k))
return
{{endif}}
for i in range(n):
idx = indexer[i]
if idx == -1:
for j in range(k):
out[i, j] = fv
else:
for j in range(k):
{{if c_type_in == "uint8_t" and c_type_out == "object"}}
out[i, j] = True if values[idx, j] > 0 else False
{{else}}
out[i, j] = values[idx, j]
{{endif}}
@cython.wraparound(False)
@cython.boundscheck(False)
{{if c_type_in != "object"}}
def take_2d_axis1_{{name}}_{{dest}}(const {{c_type_in}}[:, :] values,
{{else}}
def take_2d_axis1_{{name}}_{{dest}}(ndarray[{{c_type_in}}, ndim=2] values,
{{endif}}
ndarray[intp_t, ndim=1] indexer,
{{c_type_out}}[:, :] out,
fill_value=np.nan):
cdef:
Py_ssize_t i, j, k, n, idx
{{c_type_out}} fv
n = len(values)
k = len(indexer)
if n == 0 or k == 0:
return
fv = fill_value
for i in range(n):
for j in range(k):
idx = indexer[j]
if idx == -1:
out[i, j] = fv
else:
{{if c_type_in == "uint8_t" and c_type_out == "object"}}
out[i, j] = True if values[i, idx] > 0 else False
{{else}}
out[i, j] = values[i, idx]
{{endif}}
@cython.wraparound(False)
@cython.boundscheck(False)
def take_2d_multi_{{name}}_{{dest}}(ndarray[{{c_type_in}}, ndim=2] values,
indexer,
ndarray[{{c_type_out}}, ndim=2] out,
fill_value=np.nan):
cdef:
Py_ssize_t i, j, k, n, idx
ndarray[intp_t, ndim=1] idx0 = indexer[0]
ndarray[intp_t, ndim=1] idx1 = indexer[1]
{{c_type_out}} fv
n = len(idx0)
k = len(idx1)
fv = fill_value
for i in range(n):
idx = idx0[i]
if idx == -1:
for j in range(k):
out[i, j] = fv
else:
for j in range(k):
if idx1[j] == -1:
out[i, j] = fv
else:
{{if c_type_in == "uint8_t" and c_type_out == "object"}}
out[i, j] = True if values[idx, idx1[j]] > 0 else False
{{else}}
out[i, j] = values[idx, idx1[j]]
{{endif}}
{{endfor}}