Dear list members:
I am fairly new to the use of stata in time series analysis. I would like to
run a high pass filter on tree ring time series data set (for the past 1000
years) to maintain any variance in the data below 7 years. In matlab, there is
a function to specify the frequency, is there something similar in STATA? I
ran the function
-tssmooth nl newvariable = variable name, smoother(7)
but i am not sure of the results. The function seems to average every 7 years
together rather than taking all variance above 7 years.
Any suggestions are highly appreciated and many thanks in advance,
Linah
--
Linah Ababneh
Doctoral Candidate (Geosciences Dept. & LTRR)
The University of Arizona
1629 E. University Blvd.
Tucson, AZ 85721-0092
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