I want to plot the auto correlation function for 15 numbers without using the inbuilt function. My series is P=[ 47,64,23,71,38,64,55,41,59,48,71,35,57,40,58 ] and the plot should be autocorrelation function vs lags.
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I want to plot the auto correlation function for 15 numbers without using the inbuilt function. My code is as follows:
P=[ 47,64,23,71,38,64,55,41,59,48]; %%,71,35,57,40,58 ];
for k=1:N-1 %%k is no. of lags and its max value can be 14 here
Q1=P(1:N-k); %%Splitting the series into 2 series separated by lag k
But after execution of the loop,I am getting acf value only for last value of k, which rather should have been an array for values of k=1 to 14. I am new to matlab. Plz help me resolve the code.