how i can read these datd from text file

# n        JD            x     dx      y     dy   t F  SNR    RA        dRA      DEC      dDEC     

0001 2456033.58697852 0522.75 00.00 0236.04 00.00 3 T 094.9 22.322920 0.000000  35.83544 0.00000   
0002 2456033.58698892 0532.49 00.00 0235.95 00.00 3 S 059.0 22.316349 0.000000  35.79867 0.00000   
0003 2456033.58699321 0539.79 00.00 0235.88 00.00 5 S 026.8 22.311426 0.000000  35.77104 0.00000

Answer 1

[Walter Roberson]

fmt = [repmat('%f',1, 7), '%c', repmat('%f', 1, 5)];

fid = fopen('YourFile.txt', 'rt');
datacell = textscan(fid, fmt, 'HeaderLines', 1);
fclose(fid);

n = datacell{1};
JD = datacell{2};
x = datacell{3};

etc.

Note: the F will be a character array. If you would prefer a cell array of strings change the %c to %s

Answer 2

[Guillaume]

Another option:

data = readtable('somefile.txt', 'Delimiter', ' ', 'HeaderLines', 1, 'ReadVariableNames', false)

And if you change your header line so that the first header, # n, is instead a valid matlab variable name (e.g. just n):

data = readtable('somefile.txt', 'Delimiter', ' ')

your table will use your header line to name the columns.