05-01-2017 08:37 AM - edited 05-01-2017 08:38 AM
I have a time series with prices. There are 51 prices. And i need to check if it stationary or not ?And if not, i need to make it stationary.
So i think, i have to do a Dickey Fuller test.
So i tried this code
proc ARIMA data=prices; identify var=price stationarity=(adf=(0)) nlag=51; run;
Is it correct ?
And this is results :
So, where i have to look, if i want to see it's stationary or not ?
05-01-2017 09:43 AM - edited 05-02-2017 12:57 PM
This Tech Support note on Frequently Asked For Statistics talks about the Dickey-Fuller test and how to get it, here: http://support.sas.com/kb/30/333.html
and here is a long explanation: http://support.sas.com/documentation/cdl/en/etsug/67525/HTML/default/viewer.htm#etsug_macros_sect019...
(post modified to show Tech Support and documentation links only)