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Read spesific rowintervals from .txt file and store them
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I am trying to read a large .txt doc that continues for maany rows. I have tried to do it manually by the following code:
for i = 12
C = textscan(fid,'%.6f %.6f',npoints,'delimiter','\n', 'headerlines',i-1);
p1 = C{1}*1e3;
y1 = C{2};
py1 = [p1 y1];
end
for i = 40
C = textscan(fid,'%.6f %.6f',npoints,'delimiter','\n', 'headerlines',i-1);
p2 = C{1}*1e3;
y2 = C{2};
py2 = [p2 y2];
end
for i = 68
C = textscan(fid,'%.6f %.6f',npoints,'delimiter','\n', 'headerlines',i-1);
p3 = C{1}*1e3;
y3 = C{2};
py3 = [p3 y3];
end
Is it possible to do this is one loop ? the number of rows are equal for all the "intervals" such that "npoints" is fixed 21. and it is 28 spaces between each interval so I was thinking something like for i = [12:28:1356] where 1356-1376 is the last interval.
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KSSV
el 25 de Mzo. de 2020
I = [12 40 68] ;
iwant = cell(length(I),1) ;
for i = 1:length(I)
C = textscan(fid,'%.6f %.6f',npoints,'delimiter','\n', 'headerlines',I(i)-1);
p1 = C{1}*1e3;
y1 = C{2};
py1 = [p1 y1];
iwant{i} = py1 ;
end
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