Project - Data Handling and Interpolation
##INterpolation Data with Plot
data=xlsread('VI.xlsx');
V=data(:,1);
I = data(:,2);
plot(V,I,'b+');
R1 =(-17.3:0.1:0.9);
RE=interp1(V,I,R1);
plot(V,I,'b+',RE,R1,'b*');
plot(V,I,'b+',RE,R1,'b*');
data=xlsread('VI.xlsx');
V=data(:,1);
I = data(:,2);
plot(V,I,'b+');
R1 =(-17.3:0.1:0.9);
RE=interp1(V,I,R1);
plot(V,I,'b+',RE,R1,'b*');
plot(V,I,'b+',RE,R1,'b*');
G= fopen('ww.txt','w');
fprintf(G,'%f\n',RE);
fclose(G);
WW.txt file
-28.000000
-26.000000
-24.000000
-19.000000
-16.500000
-14.000000
-12.333333
-10.666667
-9.000000
-8.400000
-7.800000
-7.200000
-6.600000
-6.000000
-5.800000
-5.600000
-5.400000
-5.200000
-5.000000
-4.800000
-4.600000
-4.400000
-4.200000
-4.000000
-3.900000
-3.800000
-3.700000
-3.600000
-3.500000
-3.400000
-3.300000
-3.200000
-3.100000
-3.000000
-2.950000
-2.900000
-2.850000
-2.800000
-2.750000
-2.700000
-2.650000
-2.600000
-2.550000
-2.500000
-2.450000
-2.400000
-2.350000
-2.300000
-2.250000
-2.200000
-2.150000
-2.100000
-2.050000
-2.000000
-1.965000
-1.930000
-1.895000
-1.860000
-1.825000
-1.790000
-1.755000
-1.720000
-1.685000
-1.650000
-1.615000
-1.580000
-1.545000
-1.510000
-1.475000
-1.440000
-1.405000
-1.370000
-1.335000
-1.300000
-1.285000
-1.270000
-1.255000
-1.240000
-1.225000
-1.210000
-1.195000
-1.180000
-1.165000
-1.150000
-1.135000
-1.120000
-1.105000
-1.090000
-1.075000
-1.060000
-1.045000
-1.030000
-1.015000
-1.000000
-0.986667
-0.973333
-0.960000
-0.946667
-0.933333
-0.920000
-0.906667
-0.893333
-0.880000
-0.866667
-0.853333
-0.840000
-0.826667
-0.813333
-0.800000
-0.786667
-0.773333
-0.760000
-0.746667
-0.733333
-0.720000
-0.706667
-0.693333
-0.680000
-0.666667
-0.653333
-0.640000
-0.626667
-0.613333
-0.600000
-0.590000
-0.580000
-0.570000
-0.560000
-0.550000
-0.540000
-0.530000
-0.520000
-0.510000
-0.500000
-0.490000
-0.480000
-0.470000
-0.460000
-0.450000
-0.440000
-0.430000
-0.420000
-0.410000
-0.400000
-0.390000
-0.380000
-0.370000
-0.360000
-0.350000
-0.340000
-0.330000
-0.320000
-0.310000
-0.300000
-0.288889
-0.277778
-0.266667
-0.255556
-0.244444
-0.233333
-0.222222
-0.211111
-0.200000
-0.188889
-0.177778
-0.166667
-0.155556
-0.144444
-0.133333
-0.122222
-0.111111
-0.100000
-0.065517
-0.031034
0.000000
0.000000
0.002500
0.015000
0.170000
1.230000
NaN
NaN
NaN