Hi,
I am using the SAS studio forecasting procedures which generate the following code to test for White Noise.
I am using a series spanning from 2000-2019 with daily data; HOWEVER the data that I am using is reported only 5 days a week (Monday-Friday); the code generated is below and shows "seasonality=7* (i.e. 7 days of the week).
I have tried to just adjust it to "seasonality=5" however, this does not seem to yield the right results.
How should the code be adjusted to account for only 5 days a week.
ods noproctitle;
ods graphics / imagemap=on;
proc sort data=PG2.DATASET_2000_2019 out=Work.preProcessedData;
by date;
run;
proc timeseries data=Work.preProcessedData seasonality=7 plots=(series corr acf
wn);
id date interval=day;
var Spread / accumulate=none transform=none dif=0 sdif=0;
ods exclude ACFNORMPlot;
ods exclude WhiteNoiseProbabilityPlot;
run;
proc delete data=Work.preProcessedData;
run;
Hi @Elisabeth1 Can the interval be shifted by 2 days?
For example: id date interval=week.2;
Disclaimer: I am only taking a guess
You have a statement:
ID DATE INTERVAL=DAY;
Is there a "weekday" interval in proc timeseries? Then you might try:
ID DATE INTERVAL=WEEKDAY;
According to the documentation of SAS time series procedures, what @mkeintz suggested should work:
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