Checking if variable exists in GUI

2013 4 12
1 个回答
回答已采纳
9 次查看（30 天）

0 个投票

Hi, in my GUI i want to check if variable m exists and if so do some stuff with it and if it doesnt exist do something else...I have solution using ishandle function but there are some problems with it and i have to make m global variable and i dont want to. Thanks for help!!

请先登录，再回答此问题。

 采纳的回答

Walter Roberson
Walter Roberson 2013-4-12

0 个投票

if exist('m', 'var')
Or is 'm' not in the current workspace?

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Jakub
Jakub 2013-4-15
I have to make m global variable, which is sad. And if m is global variable , it exists but it doesnt containt any value. So one solution is to make m global variable and then instead of ifexist use isempty.

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Simulink Check 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