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How can I make a function restart if a string input by a user is not terminated properly instead of it breaking the code with an error?

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Andrew Williams
Andrew Williams 2017-4-15
评论： Andrew Williams 2017-4-15
I am new to this software and I understand that this is an elementary question. An example of what I'm trying to figure out is this:
function [n]=name
n=input('Please enter your name')
If the user enters 'Name and leaves it like that, the code will break. How do I make it restart the function to take the input again?

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采纳的回答

Steven Lord
Steven Lord 2017-4-15
You want the user to enter a name, not some code that's evaluated to generate a name. In that case, call the input function with the 's' flag as shown in the second section of the Description and the second Example on that function's documentation page.

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the cyclist
the cyclist 2017-4-15
One way would be to write the function with a while loop, something like this
function [n] = name
n = '';
while <some condition that you specify for _n_ goes here>
n=input('Please enter your name')
end
end
The while loop will keep repeating until the user puts something that meets your condition.

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