Project - Data Handling and Interpolation

1. % Read the data from the excel file
data = readmatrix('data.xlsx');

% Perform interpolation
v = data(:,1);
i = data(:,2);
vq = -17.3:0.1:0.9;
iq = interp1(v,i,vq,'spline');

% Generate an interactive plot
figure
plot(v,i,'o',vq,iq,'-')
xlabel('Voltage (V)')
ylabel('Current (mA)')
title('Interpolated Data')
legend('Original Data','Interpolated Data','Location','northwest')
grid on
zoom on
data_interp = [vq', iq'];
% Save the interpolated data to a text file
dlmwrite('data_interp.txt', data_interp, 'delimiter', '\t', 'precision', 6);

expl:We use the 'readmatrix' function to read the data from the excel file. We then used the 'interp1' function to perform interpolation using the 'spline' method. We plotted the original data as well as the interpolated data using the 'plot' function, and added labels, title, and legend to the plot. Finally, we saved the interpolated data to a text file using the 'dlmwrite' function, specifying the delimiter as '\t' and the precision as 6 decimal places.