Skip to content
项目
群组
代码片段
帮助
当前项目
正在载入...
登录 / 注册
切换导航面板
P
pytensor
项目
项目
详情
活动
周期分析
仓库
仓库
文件
提交
分支
标签
贡献者
图表
比较
统计图
议题
0
议题
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
CI / CD
CI / CD
流水线
作业
日程
统计图
Wiki
Wiki
代码片段
代码片段
成员
成员
折叠边栏
关闭边栏
活动
图像
聊天
创建新问题
作业
提交
问题看板
Open sidebar
testgroup
pytensor
Commits
579a4c49
提交
579a4c49
authored
9月 23, 2008
作者:
james@crane
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
maybe code blocks are like this...
上级
a7da6e8d
隐藏空白字符变更
内嵌
并排
正在显示
1 个修改的文件
包含
9 行增加
和
10 行删除
+9
-10
type.py
gof/type.py
+9
-10
没有找到文件。
gof/type.py
浏览文件 @
579a4c49
...
@@ -244,7 +244,7 @@ class PureType(object):
...
@@ -244,7 +244,7 @@ class PureType(object):
class
Type
(
object2
,
PureType
,
CLinkerType
):
class
Type
(
object2
,
PureType
,
CLinkerType
):
"""Convenience wrapper combining `PureType` and `CLinkerType`.
"""Convenience wrapper combining `PureType` and `CLinkerType`.
Theano comes with several subclasses of
{{{theano.type}}}
such as:
Theano comes with several subclasses of such as:
- `Generic`: for any python type
- `Generic`: for any python type
...
@@ -255,7 +255,7 @@ class Type(object2, PureType, CLinkerType):
...
@@ -255,7 +255,7 @@ class Type(object2, PureType, CLinkerType):
But you are encouraged to write your own, as described in WRITEME.
But you are encouraged to write your own, as described in WRITEME.
In the following code:
In the following code:
..
code-block:: python
..
python::
# Note: tensor.fvector is a Type (subtype Tensor) instance
# Note: tensor.fvector is a Type (subtype Tensor) instance
# Declare a symbolic floating-point vector using __call__
# Declare a symbolic floating-point vector using __call__
b = tensor.fvector()
b = tensor.fvector()
...
@@ -265,14 +265,13 @@ class Type(object2, PureType, CLinkerType):
...
@@ -265,14 +265,13 @@ class Type(object2, PureType, CLinkerType):
Whenever you create a symbolic variable in theano (technically, `Result`) it will contain
Whenever you create a symbolic variable in theano (technically, `Result`) it will contain
a reference to a Type instance.
a reference to a Type instance. That reference is typically constant during the lifetime
That reference is typically constant during the lifetime of the Result.
of the Result. Many variables can refer to a single Type instance, as do b and c above.
Many variables can refer to a single Type instance, as do b and c above.
The Type instance defines the kind of value which might end up in that variable when
The Type instance defines the kind of value which might end up in that variable when executing a
executing a `Function`. In this sense, theano is like a strongly-typed language because
`Function`. In this sense, theano is like a strongly-typed language because the types are
the types are included in the graph before the values. In our example above, b is a
included in the graph before the values. In
Result which is guaranteed to corresond to a numpy.ndarray of rank 1 when we try to do
our example above, b is a Result which is guaranteed to corresond to a
some computations with it.
numpy.ndarray of rank 1 when we try to do some computations with it.
Many `Op` instances will raise an exception if they are applied to inputs with incorrect
Many `Op` instances will raise an exception if they are applied to inputs with incorrect
types. Type references are also useful to do type-checking in pattern-based optimizations.
types. Type references are also useful to do type-checking in pattern-based optimizations.
...
...
编写
预览
Markdown
格式
0%
重试
或
添加新文件
添加附件
取消
您添加了
0
人
到此讨论。请谨慎行事。
请先完成此评论的编辑!
取消
请
注册
或者
登录
后发表评论