Project - Data Handling and Interpolation

Project:

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

 

code:

M=readmatrix('VI.xlsx');

V=M(:,1);

I=M(:,2);

Vq=-17.3:0.1:0.9; % Voltage Query Point

Iq=interp1(V,I,Vq,'linear')

Iq2=interp1(V,I,Vq,'pchip')

figure(1)

plot(V,I,Vq,Iq,'r*')

grid on

title('Linear Interpolation')

legend('Actual Graph','Interpolated')

xlabel('Volatge')

ylabel('Current')

figure(2)

plot(V,I,Vq,Iq2,'g*')

grid on

title('Pchip Interpolation')

legend('Actual Graph','Interpolated')

xlabel('Volatge')

ylabel('Current')

%%

A=[Vq' Iq' Iq2']

writematrix(A,'Project output.txt')

 

/*************************************************/

Figures: