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Time reading in matlab

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Silpa K
Silpa K on 23 Aug 2019
Commented: Silpa K on 24 Aug 2019
Hi, I have a data set, using matlab I need to read all the data.But the date and time reading is not working.Please help me.
Walter Roberson
Walter Roberson on 24 Aug 2019
Zip the file and attach the .zip here.
Silpa K
Silpa K on 24 Aug 2019
This is one of it

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Accepted Answer

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 24 Aug 2019
Here is the complete solution script. Please note that your data file is renamed (S1932.txt):
File_Name = 'S1932.txt';
Formatting_Spec = '%s%s%s %s%f%s %f%f%f %c %d%d%d';
N_header = 10;
My_FID=fopen(File_Name, 'r');
DATA=textscan(My_FID, Formatting_Spec, 'headerlines', N_header);
Date = DATA{1}; % You can ignore this
Time = DATA{2}; % You can ignore this
ET = DATA{3}; % You can ignore this
GT = DATA{4};
MAG = DATA{5};
M = DATA{6};
LAT = DATA{7};
LON = DATA{8};
Q = DATA{10};
EVID = DATA{11};
NPH = DATA{12};
NGRM = DATA{13};
Good luck.

More Answers (1)

Walter Roberson
Walter Roberson on 24 Aug 2019
%set up
opt = detectImportOptions('1932.catalog', 'FileType', 'text', 'readvariablenames', false, 'HeaderLines', 10);
opt = setvartype(opt, 1, 'datetime');
opt = setvaropts(opt,1,'InputFormat', 'yyyy/MM/dd');
opt.VariableNames = {'Date', 'Time', 'ET', 'GT', 'MAG', 'M', 'LAT', 'LON', 'DEPTH', 'Q', 'EVID', 'NPH', 'NGRM'};
%read the file
datatable = readtable('1932.catalog', opt);
%throw away the garbage last entries
datatable = rmmissing(datatable);
%create a composite date/time from the date and time fields
datatable.DateTime = datatable.Date + datatable.Time;
datatable.DateTime.Format = 'dd-MMM-uuuu HH:mm:ss.SSS';


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