correlation coefficient between 2 autocorrelated time series


New Member

I have 2 time series each 19 data points long which have a correlation coefficient of 0.5. Great!
Problem. The time series are both display a large autocorrelation at 1 lag, small at 2 lag and zero at 3.
How can I calculate the correlation coefficient taking this autocorrelation into consideration?
The simplest solution would be the best as I am not a stats person....sorry!

I would greatly appreciate any suggestions!!