Project - Data Handling and Interpolation

1:-

Code:-

% Read data from Excel file
[num, txt, raw] = xlsread('VI.xlsx');

% Extract voltage and current data
V = num(:, 1);
I = num(:, 2);

% Interpolate the data
Vq = -17.3:0.1:0.9;
Iq = interp1(V, I, Vq);

% Plot the interpolated data
plot(Vq, Iq);
xlabel('Voltage (V)');
ylabel('Current (mA)');
title('Interpolated VI Data');

% Save interpolated data to a text file
data = [Vq', Iq'];
dlmwrite('interpolated_data.txt', data, 'delimiter', '\t');

Explanation:-

1. We first use the 'xlread' function to read the data from the 'VI.xlsx' file and store it in the 'num', 'txt', and 'raw'variables.

2. We then extract the voltage and current data from the 'num'variable using indexing.

3. We use the interp1 function to perform linear interpolation on the data. We specify the voltage range to interpolate over as '-17.3:0.1:0.9', and interpolate the current values at those voltages.

4. We plot the interpolated data using the 'plot'function, and add appropriate labels and title to the plot.

5. Finally, we use the 'dlmwrite'function to save the interpolated data to a tab-delimited text file named 'interpolated_data.txt'.

    6.There is no missing data in the given data set.