Project - Data Handling and Interpolation

In a laboratory experiment, data of voltage and current has been recorded and the same is attached in an excel file ( Click on this link VI.xlsx ). Read the excel file in the Matlab program and perform the interpolation in the range of -17.3:0.1:0.9. Generate the interactive plot for the interpolated data and store them in a text file.

Matlabcode answer:

f = xlsread('data.xlsx'); 
x = f(:,1); 
y = f(:,2); 
xq = -17.3:0.1:0.9; 
vq = interp1(x,y,xq); 
plot(xq,vq); xlim([-17.3 0.9]); 
ylabel('Interpolated data'); 
title('Data interpolation'); 
dlmwrite('interpolated_data.txt',vq,'delimiter','\t');

Results: