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Matlab drawing activation function sigmoid, relu

2022-07-19 04:01:00 【51CTO】

Activation function is mainly used in neural network , Its formula is ：

Matlab Draw the activation function sigmoid,Relu_ development language

The following is used matlab Let's draw

       
       clc
       
       clear 
       
       all
       
       x 
       
       = 
       
       linspace(
       
       -
       
       10.0,
       
       10.0); 
       
       % 
       
        Set up x The scope is 
       
       -
       
       10
       
        To 10
       
       sigmoid 
       
       = 
       
       1.
       
       /(
       
       1.0
       
       +
       
       exp(
       
       -
       
       1.0
       
       *
       
       x)); 
       
       % 
       
        Activation function formula 
       
       plot(
       
       x,
       
       sigmoid,
       
       'r')  
       
       % 
       
        The drawing color is red 
       
       legend(
       
       'sigmoid');
       
       figure
       
       relu 
       
       = 
       
       max(
       
       x,
       
       0);
       
       plot(
       
       x,
       
       relu,
       
       'r');
       
       legend(
       
       'relu');
      
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