Project - Data Handling and Interpolation
data=readtable('DATA.xlsx');
xp = -17.3:0.1:0.9;
yp = interpl(x,y,xp,'spline');
figure
polt(x,y,'0');
hold on
polt(xp,yp,'k-');
xlabel('data of voltage');
ylabel('data of curretnt');
title('laboratory experiment in spline')
grid on
xp = -17.3:0.1:0.9;
yp = interpl(x,y,xp,'cubic');
figure
polt(x,y,'0');
hold on
polt(xp,yp,'x-');
xlabel('data of voltage');
ylabel('data of curretnt');
title('laboratory experiment in cubic')
grid on
xp = -17.3:0.1:0.9;
yp = interpl(x,y,xp,'linear');
figure
polt(x,y,'0');
hold on
polt(xp,yp,'r-');
xlabel('data of voltage');
ylabel('data of curretnt');
title('laboratory experiment in linear')
grid on
figure
polt(x,y,'0');
xlabel('data of voltage');
ylabel('data of curretnt');
title('data points')
grid on
TF = ismissing(x);
fopen DATA.mat;
fsave DATA.mat;