why am I getting error "Undefined function or variable"

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Mallikarjun Yelameli
回答： Mallikarjun Yelameli 2018-5-13
I have defined a variable called "bestDimen". There is no error. I crosschecked many times. The script is also correct. It was working fine. But all of a sudden it starts giving following error.
"Undefined function or variable 'bestDimen'."
I am using "Matlab 2017a" Please reply fast. It's very urgent. I need help

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采纳的回答

Jan
Jan 2018-5-12
编辑：Jan 2018-5-12
"all of a sudden" - you can be sure, that this happens, because you instruct Matlab explicitly to delete the variable.
Without seeing the code, all I can do is guessing. I guess, that you are using scripts and any of the scripts contain a clear, clear vars or even worse a clear all statement.
Using scripts for productive work is a bad programming practice. Prefer functions, because they avoid polluting the workspaces and in consequence no clear 'ing is need.

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Mallikarjun Yelameli
Thank you all for replying me so fast and early. The problem is solved when I restarted my computer and then Matlab started doing everything once again. Thank you so much to all of you. I appreciate your support.

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