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Extract numbers out of a .mat file that has both characters and numbers

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Karthik
Karthik el 16 de Jul. de 2015
Editada: Stephen23 el 17 de Jul. de 2015
Hi, How can I extract numbers out of this .mat file ? Thanks.

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Azzi Abdelmalek
Azzi Abdelmalek el 17 de Jul. de 2015
Editada: Azzi Abdelmalek el 17 de Jul. de 2015
a=regexp(text,'(?<==)\d+(.)?(\d+)?','match','once')
id=~cellfun(@isempty,a(:,1))
a=str2double(a(id))
  2 comentarios
Karthik
Karthik el 17 de Jul. de 2015
Hi, Thanks. The numbers like 2.3*e-4 are being read as 2.3. Not producing the exact numbers. Can you let me know how to fix it.
Stephen23
Stephen23 el 17 de Jul. de 2015
Editada: Stephen23 el 17 de Jul. de 2015
Standard scientific notation using "E" syntax does not use any multiplier symbol, so your source data is non-standard and therefore MATLAB does not recognize it. Therefore you basically have two choices:
  • Change the source data to use standard E-notation.
  • Read the data into MATLAB as strings, and then do some hackery using regexprep before converting to numeric.

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