! Define the period from the frequency axis. (From FFT demo) LET per = 1./a
Here 1./a for monthly data (If I am correct). If I have hourly data, what should the the value in place of 1.
And also if it is weekly and 15 days data what should be taken. I have both hourly data and 15 days data. I am confused in taking this value.
Please help.
Thank you.
Milika