Please I want to read a mgd. file with a source code, please I need help. I will send you the source code and the mgd.file too. Thank you

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Godfrey Ojerheghan 2018-1-11

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评论： Guillaume 2018-1-11

Please I want to read a mgd. file with a source code, please I need help. I will send you the source code and the mgd.file too. Thank you

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Godfrey Ojerheghan 2018-1-11

编辑：Walter Roberson 2018-1-11

在 MATLAB Online 中打开

Thanks Jan.

Here is the source code as attached:

function [UT1s,MagDataIAGA] = ReadIAGA1s(filename);
UT1s = zeros(1,86400);
MagDataIAGA = zeros(86400,4);
fid = fopen('ILR20071231psec.sec');
if fid > 0
    disp(filename)
    format = '%4d-%02d-%02d %02d:%02d:%02d.000 %3d %9.2f %9.2f %9.2f %9.2f';
    [yyyy,mm,dd,hh,mn,ss,doy,H,D,Z,F] = textread(filename,format,'headerlines',13);
%     for j=1:length(yyyy)
%         UT1s(1,j) = datenum(yyyy(j),mm(j),dd(j),hh(j),mn(j),ss(j));
%     end
    UT1s = datenum(yyyy(1),mm(1),dd(1),hh(1),mn(1),ss(1)):1/86400:datenum(yyyy(end),mm(end),dd(end),hh(end),mn(end),ss(end));
    MagDataIAGA(1:86400,1) = H;
    MagDataIAGA(1:86400,2) = D;
    MagDataIAGA(1:86400,3) = Z;
    MagDataIAGA(1:86400,4) = F;
else
    disp(['Can not find ' filename]);
end

The .mdg file is a MAGDAS (Magnetic Data Acquisition System) file. I saved as a .mat file

Please I do not know how to use the source code to read the .mat file. Please help me out.

Guillaume 2018-1-11

a) Where did you get that code from? The fact that it requires a file ILR20071231psec.sec on the path to be present and never does anything with it (other than leaving it open) is very puzzling

b) that code is not designed to open mat files, only text files in a specific format.

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