Project - Data Handling and Interpolation

Project :

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.

ANSWER:

clc

clear all

[x]=xlsread('VI.xlsx',1); % to read the excel file

v=x(:,1); to %read the the input volt

i=x(:,2); % to read the input current

[e] =xlsread('VI.xlsx',2); % to read to excel file

Xq=e(:,1); % to read the missing volt

Vq = interp1(v,i,Xq); % tofind the interpolation data

plot(v,i,':.') % to create the plot

hold on

plot(Xq,Vq,'o')

fid = fopen('project_output.txt','w'); %to open the file id for output file

fprintf(fid,'%f',Vq); % print the file id

fclose(fid);