Extract number on variable name.

Question

Laura 2016-7-19

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回答： Steven Lord 2016-7-19

My variable name is Final_50000_run_1

Is there a way to extract the number 50000 and 1 out.

Thanks.

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Matt J 2016-7-19

Yes, there is, but how did those numbers get there in the first place?

Laura 2016-7-19

I saved it for different run of simulations in Fortran.

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Answer 1

Azzi Abdelmalek 2016-7-19

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编辑：Azzi Abdelmalek 2016-7-19

在 MATLAB Online 中打开

s='Final_50000_run_1'
regexp(s,'\d+','match','once')

If you want to extract all the numbers

regexp(s,'\d+','match')

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Answer 2

Steven Lord 2016-7-19

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https://ww2.mathworks.cn/matlabcentral/answers/296377-extract-number-on-variable-name#answer_229138

Is this a variable name or a file name? If it is a variable name, I recommend you read question 1 in the Programming section of the FAQ for an explanation of why including data in your variable names is discouraged. If it is a file name, see Azzi's answer.