MATLAB: How to interpolate the following sample in 200 samples

interpolation

As I fail to understand the interp1 function:
How to interpolate the following sample in 200 samples?
A= [3,41000000000000	36,6300000000000	71,6300000000000	91,4800000000000	95,4100000000000	88,0300000000000	81,7500000000000	84,2500000000000	89,1000000000000	91,6600000000000	92,8400000000000	91,6000000000000	98,4800000000000	101,450000000000	104,280000000000	88,3700000000000	42,5500000000000	3,93000000000000	0	0	0	0	0	0	0	0	0	0	0]
Thank you!

Best Answer

Let A be your data. 
n = length(A) ; 
x = 1:n; 
xi = linspace(1,n,200) ;
Ai = interp1(x,A,xi) ; 
figure
hold on
plot(x,A,'r')
plot(xi,Ai,'b')
legend('original','interpolated')
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