Proc x11 for weekly data

[YK1]

Hello SAS support!

I'm just wondering how can I determine seasonality of weekly data using X11. 

I've already done using proc x11 with monthly data, but I want to see weekly seasonality to be more elaborate. 

Can anyone let me know the way to determine the trend, seasonality, irregularity of weekly data?

thanks in advance!

best,

YK

[Ksharp]

It is a question about SAS/ETS. Post it at forum Forecasting and Econometrics

[YK1]

Thanks!
I'll remove this posting and repost it to forecast and econometrics soon. Thanks for your advice