how to remove multiple string line from ascii data file

hello,

I have model output in ascii format which contains multiple strings that i want to remove. here I paste some of data with string lines.

 194397   479 23:50:00  3.287000E-03  1.824640E+04  1.824640E+04  1.333954E+16
 194398   479 23:53:20  3.287000E-03  1.824640E+04  1.824640E+04  1.333954E+16
 194399   479 23:56:40  3.287000E-03  1.824640E+04  1.824640E+04  1.333954E+16
 194400   480 00:00:00  3.287000E-03  1.824640E+04  1.824640E+04  1.333954E+16
      DEF_HIS   - creating history file: output/rmed16_grd_e/GLS/his_rmed16_grd_gls_0451.nc 
      DEF_AVG   - creating average file: output/rmed16_grd_e/GLS/avg_rmed16_grd_gls_0015.nc
      WRT_AVG   - wrote averaged fields into time record =             0000001
      DEF_DIAGS - creating diagnostics file: /output/rmed16_grd_e/GLS/dia_rmed16_grd_gls_0450.nc
 194401   480 00:03:20  3.286999E-03  1.824640E+04  1.824640E+04  1.333954E+16
 194402   480 00:06:40  3.286997E-03  1.824640E+04  1.824640E+04  1.333954E+16
 194403   480 00:10:00  3.286996E-03  1.824640E+04  1.824640E+04  1.333954E+16
 194404   480 00:13:20  3.286994E-03  1.824640E+04  1.824640E+04  1.333954E+16

so please tell me how can do it.

thanks

mahesh

Answer 1

[Jan]

FID = fopen(FileName, 'r');
C = textscan(FID, '%s', 'Delimiter', '\n');
S = C{1};
[dummy, index] = sort(S);
keep = false(1, numel(S));
keep(index) = true;
UniqueS = S(keep);

The variable dummy contains the sorted list of unique lines. But more likely you want the list in the original order.