Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
PaddlePaddle
PaddleDetection
提交
a6e69d3c
P
PaddleDetection
项目概览
PaddlePaddle
/
PaddleDetection
12 个月 前同步成功
通知
692
Star
11112
Fork
2696
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
184
列表
看板
标记
里程碑
合并请求
40
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
P
PaddleDetection
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
184
Issue
184
列表
看板
标记
里程碑
合并请求
40
合并请求
40
Pages
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
a6e69d3c
编写于
6月 14, 2018
作者:
F
fengjiayi
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Add doc for 'batch'
上级
8a136d14
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
40 addition
and
5 deletion
+40
-5
python/paddle/fluid/layers/io.py
python/paddle/fluid/layers/io.py
+40
-5
未找到文件。
python/paddle/fluid/layers/io.py
浏览文件 @
a6e69d3c
...
...
@@ -549,6 +549,41 @@ def shuffle(reader, buffer_size):
def
batch
(
reader
,
batch_size
):
"""
This layer is a reader decorator. It takes a reader and adds
'batching' decoration on it. When reading with the result
decorated reader, output data will be automatically organized
to the form of batches.
Args:
reader(Variable): The reader to be decorated with 'batching'.
batch_size(int): The batch size.
Returns:
Variable: The reader which has been decorated with 'batching'.
Examples:
.. code-block:: python
raw_reader = fluid.layers.io.open_files(filenames=['./data1.recordio',
'./data2.recordio'],
shapes=[(3,224,224), (1)],
lod_levels=[0, 0],
dtypes=['float32', 'int64'],
thread_num=2,
buffer_size=2)
batch_reader = fluid.layers.batch(reader=raw_reader, batch_size=5)
# If we read data with the raw_reader:
# data = fluid.layers.read_file(raw_reader)
# We can only get data instance by instance.
#
# However, if we read data with the batch_reader:
# data = fluid.layers.read_file(batch_reader)
# Each 5 adjacent instances will be automatically combined together
# to become a batch. So what we get('data') is a batch data instead
# of an instance.
"""
return
__create_unshared_decorated_reader__
(
'create_batch_reader'
,
reader
,
{
'batch_size'
:
int
(
batch_size
)})
...
...
@@ -571,20 +606,20 @@ def parallel(reader):
{})
def
read_file
(
file_obj
):
def
read_file
(
reader
):
"""
Read data from a file objec
t.
Execute the given reader and get data via i
t.
A
file object is also a Variable. It can be a raw file object
generated by
A
reader is also a Variable. It can be a raw reader
generated by
`fluid.layers.open_files()` or a decorated one generated by
`fluid.layers.double_buffer()` and so on.
Args:
file_obj(Variable): The file object from where to read data
.
reader(Variable): The reader to execute
.
Returns:
Tuple[Variable]: Data read
from the given file object
.
Tuple[Variable]: Data read
via the given reader
.
Examples:
.. code-block:: python
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录