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

Hi, How can I extract numbers out of this .mat file ? Thanks.

Answer 1

[Azzi Abdelmalek]

a=regexp(text,'(?<==)\d+(.)?(\d+)?','match','once')
id=~cellfun(@isempty,a(:,1))
a=str2double(a(id))

[Karthik]

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]

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.