Dealing data with text and numerical in .txt file
2 views (last 30 days)
Show older comments
I have a txt file containing some data as follows: how to visualize using Matlab? I request your suggestions.
"k: 0.1, omega_real: 20001, omega_imag: 11283.8
k: 0.30101, omega_real: 2208.33, omega_imag: 1245.35
k: 0.50202, omega_real: 794.574, omega_imag: 447.726
k: 0.70303, omega_real: 405.652, omega_imag: 228.301
k: 0.90404, omega_real: 245.711, omega_imag: 138.064
k: 1.10505, omega_real: 164.782, omega_imag: 92.404
k: 1.30606, omega_real: 118.247, omega_imag: 66.1498
k: 1.50707, omega_real: 89.0568, omega_imag: 49.6807
k: 1.70808, omega_real: 69.5509, omega_imag: 38.6757
k: 1.90909, omega_real: 55.8753, omega_imag: 30.9601
k: 2.1101, omega_real: 45.9183, omega_imag: 25.3424
k: 2.31111, omega_real: 38.4445, omega_imag: 21.1258
k: 2.51212, omega_real: 32.6919, omega_imag: 17.8803
k: 2.71313, omega_real: 28.1699, omega_imag: 15.329
k: 2.91414, omega_real: 24.551, omega_imag: 13.2872"
0 Comments
Answers (3)
Dyuman Joshi
on 17 Feb 2024
%display the contents of the file
type data.txt
%read the file
fID = fopen('data.txt')
%read the data in the given format - as the data is read in column order by fscanf,
%provide the dimensions i.e. 3 columns and all the rows, and transpose the final output
data = fscanf(fID, 'k: %f, omega_real: %f, omega_imag: %f\n', [3 Inf]).'
2 Comments
Dyuman Joshi
on 17 Feb 2024
You're welcome!
If my answer solved your problem, please consider accepting the answer.
Stephen23
on 17 Feb 2024
T = readtable('data.txt', 'Delimiter',{' ',':',','}, 'MultipleDelimsAsOne',true)
0 Comments
Star Strider
on 17 Feb 2024
I am not certain what you intend by ‘visualize’.
Perhaps this —
T1 = readtable('M I T 2024 02 17.txt', 'Delimiter',{',',':'})
Lv = varfun(@(x)~isnumeric(x),T1);
Ln = find(table2array(Lv));
k = find(table2array(varfun(@(x)contains(x,'k'), T1(1,Ln))));
Re = find(table2array(varfun(@(x)contains(x,'real'), T1(1,Ln))));
Im = find(table2array(varfun(@(x)contains(x,'imag'), T1(1,Ln))));
k = table2array(T1(:,Ln(k)+1));
Real = table2array(T1(:,Ln(Re)+1));
Imag = table2array(T1(:,Ln(Im)+1));
figure
plot(k, Real, 'DisplayName','Real', 'LineWidth',2)
hold on
plot(k, Imag, 'DisplayName','Imag', 'LineWidth',2)
plot(k, abs(Real+1j*Imag), 'DisplayName','Abs', 'LineWidth',2)
hold off
grid
Ax = gca;
Ax.YScale = 'log';
xlabel('k')
ylabel('Magnitude')
legend('Location',' best')
.
0 Comments
See Also
Categories
Find more on Text Data Preparation in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!