theano 入门教程1.3

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theano 入门教程1.3

1. 给一个参数设置默认值

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   #
   -*- coding: utf-8 -*-

   """

   Created
   on Wed Jun  4 23:22:17 2014

   @author:
   wencc

   """

   import
   theano.tensor as T

   from
   theano import function

   from
   theano import Param

   from
   theano import pp

   if
   __name__ == "__main__":

   x,
   y , w= T.dscalars(‘x‘, ‘y‘, ‘w‘)

   z
   = x + y + w

   f
   = function([x, Param(y, default=1), Param(w, default=2, name=‘w_by_name‘)],
   z)

   print
   f(33, 2, w_by_name=4)

   print
   pp(z)

这里用Param给一个变量设置默认参数。

来自为知笔记(Wiz)

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