Function requires number as input; I want to enter a variable though!

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Sean Farrell
Sean Farrell 2017-1-13
评论： Sean Farrell 2017-1-15
Hi everyone! So, I am currently working on a code that uses the rand function. I have a variable set to a particular value, and the value changes based on the user's input to the function. I want to use this variable in the rand function. However, when I run the code, an error comes back stating that I can only enter numbers into the rand function, not variables. Any idea how I can get around this?
Thank you in advance!

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回答（1 个）

KSSV
KSSV 2017-1-13
% rand column vectors
col = 3 ;
rand(col,1)
% rand row vectors
row = 4 ;
rand(1,row)
% matrix of rand
rand(row,col)
rand needs only number as input. If you still face problem, show the code how you have called it.
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Image Analyst
Image Analyst 2017-1-15
Like this:
function A = catalyst_dispersion(b)
total = 1
amount = round(b*total);
random = rand(amount, 1);
Sean Farrell
Sean Farrell 2017-1-15
Thank you KSSV and Image Analyst, this is exactly what I was looking for!! I appreciate the help!
Best, Sean

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