Undefined function or variable error

1 次查看（过去 30 天）
Rabbia Sajjad
Rabbia Sajjad 2018-12-3
评论： Rabbia Sajjad 2018-12-3
option=input('Do you want to continue?(Y/N)','s');
while option == Y
%here comes body of loop
option=input('Do you want to continue?(Y/N)','s');
end
it says undefined function or variable input when I enter Y

请先登录，再回答此问题。

采纳的回答

Jan
Jan 2018-12-3
编辑：Jan 2018-12-3
Replace while option == Y by
while strcmpi(option, 'y')
In your code Y is a function call, not the character, because the quotes are missing. Using strcmpi accepts lower and upper case characters and compares the string in total, not elementwise as teh == operator. See:
c = 'yy'
c == 'y' % This compares both characters and replies [true, true]
strcmp(c, 'y') % This is a scalar as wanted

更多回答（1 个）

madhan ravi
madhan ravi 2018-12-3
'Y' not Y

类别

在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by