https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519312#M3761 <P>Hello, does anyone happen to know the syntax to check signification of trend in time series regression?</P><P>I know the syntax Y=Time/influence but got confused interpreting the output. Please help, thank you in advance.</P> Thu, 06 Dec 2018 23:16:12 GMT sasgiaz 2018-12-06T23:16:12Z https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519312#M3761 <P>Hello, does anyone happen to know the syntax to check signification of trend in time series regression?</P><P>I know the syntax Y=Time/influence but got confused interpreting the output. Please help, thank you in advance.</P> Thu, 06 Dec 2018 23:16:12 GMT https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519312#M3761 sasgiaz 2018-12-06T23:16:12Z https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519320#M3765 <P>The estimate for the Time effect is the size of the trend (in the same units as Time, i.e. if Time is in hours,, the estimate is of&nbsp;change in Y per hour). The pvalue for the Time effect is the statistical significance of the trend.</P> Thu, 06 Dec 2018 23:32:37 GMT https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519320#M3765 PGStats 2018-12-06T23:32:37Z https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519876#M3890 <P>Thankyou for spending your time to answer my question..but I want to make it clear..</P><P>I attach the screenshot for output in SAS.</P><P>By reading your answer, is it true that based on the output, the p-value of 'waktu' (waktu = time) is valued more than alpha, then it can be concluded that the trend data is not significant, and the model should not be using trend?</P><P>Please correct me if I'm wrong, thank you so much.</P> Mon, 10 Dec 2018 09:40:14 GMT https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/519876#M3890 sasgiaz 2018-12-10T09:40:14Z https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/520039#M3920 <P>Correct. A p-value of 0.66&nbsp;denotes a non significant effect, i.e. it has no predictive value.&nbsp;</P> Mon, 10 Dec 2018 16:35:55 GMT https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/520039#M3920 PGStats 2018-12-10T16:35:55Z https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/520164#M3962 Ok thank you! Mon, 10 Dec 2018 21:47:14 GMT https://communities.sas.com/t5/New-SAS-User/Trend-in-Time-Series-Regression/m-p/520164#M3962 sasgiaz 2018-12-10T21:47:14Z