Project - Data Handling and Interpolation

interplotation_proj.mx

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interpolation of voltage and current data

reading excel file data

D=xlsread('VI");

v-D (:,1); voltage data seperating i=D(:,2); current data seperating

xq-1-17.3:0.1:0.9]; Given interpolation range

yql=interpl (v, i, xq); linear interpolation

yq2=interpl (v, i, xq, 'spline'); spline interpolation

Linear interpolation plotting

figure (1)

plot (v, i, 's', xq, yql,':');

title('Linear Interpolation");

xlabel('Voltage (V));

ylabel('Current (I)'); legend('Actual Value', 'Interpolated value', 'location', 'Northeast');

grid on:

* spline interpolation plotting

figure (2)

plot (v, i, 's', xq, yq2, 'b: "); 21-

title('SPLINE INTERPOLATION"); 22- 23-

xlabel('Voltage (V)');

ylabel('Current (1)');

legend('Actual Value', 'Interpolated value', 'location', 'Northeast');