How to plot this function?

1 次查看(过去 30 天)
John 2014-12-24
评论: Star Strider ,2014-12-24
I have a function that is "vectorized". I did that because I wanted to have one such function for each value of the parameter "a":
clear all;
p = @(x) 1/3.*(exp(x.^(a))-1)./(exp(x.^(a))+1) ;
I want to have the three plots (one for each value of "a") in the same figure. However, I am having trouble isolating each function for plotting. For instance, I expected that:
p1 = @(x) p(x,1,1)
would represent one of functions, but it doesn't. My other attempts have also failed. How can I get the desired result?


Star Strider
Star Strider 2014-12-24
编辑:Star Strider 2014-12-24
The easiest way is to pass ‘a’ as a parameter as well:
p = @(x,a) 1/3.*(exp(x.^(a))-1)./(exp(x.^(a))+1) ;
p1 = p(x,a(1));
Not that within the function, ‘a’ is whatever you want it to be. If you define it as a parameter, it will not pick up the value of ‘a’ from the workspace.
  4 个评论
Star Strider
Star Strider 2014-12-24
Thank you. I do my best!
Now I understand what you’re doing. If you only want it as a function of ‘x’, you have to specify it as you did:
p1 = @(x) p(x,a(1));
It all depends on how you want to call your function. There are at least a few ways to do it correctly, so choose the one that works best for you in your application. I chose the way I usually do it in my two versions of the plot call.


更多回答(0 个)


Help CenterFile Exchange 中查找有关 Graphics Object Programming 的更多信息


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by