Automatically reading data files containing special characters in Matlab -

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i import data file in matlab generated external software automatically.

this data file can contain special characters in third column @ random places. therefore, cannot utilize dlmread.

i'm figuring out how import file automatically in matlab while inserting data in matrix. also, identifying special characters , replacing them nan necessary.

here sample data better picture of problem:

naca0012      alfa =  25.00000 re =        0.000 xflap,yflap =     0.000000    0.000000     x      y     cp    1.00000  0.00126  0.53803 0.08399  0.04389 -7.27148 0.07278  0.04150 -8.16799 0.03346  0.02983-15.69087 0.02840  0.02771-18.03665 0.02399  0.02566-20.81862 0.00360  0.01041-95.28658 0.00238  0.00851********* 0.00141  0.00659********* 0.00070  0.00467********* 0.00025  0.00277********* 0.00003  0.00091********* 0.00003 -0.00091********* 0.00025 -0.00277-93.41611 0.00070 -0.00467-72.18787 0.00141 -0.00659-51.54605 0.00238 -0.00851-37.04853

notice how third column gets sort of 'stuck' onto second column

any appreciated since i'm kinda stuck , don't know how automatically. maybe guys can provide me piece of code it.

thanks in advance!

balraj

use textscan 3 ideas in mind:

  • one needs skip first lines;
  • the * strings treated nans;
  • in case of error close file.

hence code (assuming example data in file 'u.txt'):

try         f = fopen('u.txt');         m = textscan( f,                 ...            '%f%f%f',        inf,         ...            'headerlines',   6,           ...            'treatasempty',  '*********', ...            'collectoutput', 1            ...         );         fclose(f);  catch me         fclose('all'); end;

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