MATLAB: Extract a number from text file

extractfscanfnumbertext file

There are contents of a text file , which take the following form.
 ---------
# unique survivor object: RWL                                     
# total count of objects:   4
# COIC lon[deg],lat[deg]:   30.831  43.061
# COIC epoch & time[UTC]: 2004/01/01 00:10:56.918
#
# __central_track__  __position_wrt_COIC__  ___P[-]/ds[km]_of_1D_swath_with_PD=fct(lat)___  _P[-]/ds[km]_of_2D_swath_with_PD=fct(lon,lat)_
# lon[deg] lat[deg]  __ds[km]_  __dt[sec]_  ___P.imp__ ___Pc.min__ ___Pc.avg__ 
   43.040   30.926       8.110     -39.030   1.200E-01   1.367E-06   1.367E-06 
   43.041   30.923       8.020     -38.957   1.739E-03   1.982E-08   1.982E-08 
   43.063   30.818      -1.060      -0.194   4.659E-01   5.308E-06   5.308E-06
I want to save as a text file by extracting only the numbers.(maintain number format) So , I do not know what you want to save by using the fscanf function. I will appreciate to tell me what I should do. Thanks in advance.

Best Answer

FID = fopen('file.txt');
form='%f %f %f %f %f %f %f'; % we have 7 columns, then use 7 %f
n = 7; % numbers of lines representing a text 
out = textscan(FID, form,'headerlines', n)
fclose(FID)
cell2mat(out)
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