Project - Data Handling and Interpolation

AIM:

Data handling and interpolation.

OBJECTIVES :

1. Finding missing data and save it in text.
2. interpolate the data set
3. save your programe and attach the same
4. creating text file and upload in attachment

PROJECT CODES :

clc
clear all
VI=xlsread('VI.xlsx')  %reading deta from XL file
Voltage=VI(:,1);  %saving data as first column voltage
Amps=VI(:,2);     %saving data as second column amps
x=[-17.3:0.1:0.9]; %applying range
y=interp1(Voltage,Amps,x,'linear');  %applying interpolation to get 2D image
y2=interp1(Voltage,Amps,x,'spline');
figure(1);  %ploting VI graph and applying values
plot(Voltage,Amps,x,y,'r*');
grid;
title('Linear Interpolation');
ylabel('I(mAmps)');
xlabel('V(volt)');
legend('Original','Interpolated')
figure(2);  %ploting VI graph and applying values
plot(Voltage,Amps,x,y2,'g*');
grid;
title('Spline Interpolation');
ylabel('I(mAmps)');
xlabel('V(volt)');
legend('Original','Interpolated')
VV=[-17.3 -17.1 -17 -16.8 -16.5 -16 -15 -14 -12 -10 -8 -5 -2 0.2 0.09 0.19 0.27 0.39 0.43 0.5 0.55 0.6 0.62 0.65];
II=interp1(Voltage,Amps,VV);
z=[VV' II']
writematrix(z,'InterpolationData.txt')

RESULTS: