theano 入门教程1.3

1. 给一个参数设置默认值

   # -*- 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。

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