Hello I'm sorry for the late respond but I'm so thankful for your kind help and answer. Thankyou!
Your DL1-DL3 's one level has 99% data ,so DL1-DL3 don't have any variance to explain Y .
My suggestion is deleting these DL1-DL3 on account of they are not right variable(no power) to predict Y .
Maybe @Rick_SAS @StatDave could give us some better advice .
Hi, I'm sorry for the late respond. It's ok i'm done with the anaysis. Thank you so much for your kind help and attention:)
Build your skills. Make connections. Enjoy creative freedom. Maybe change the world. Registration is now open through August 30th. Visit the SAS Hackathon homepage.
SAS' Charu Shankar shares her PROC SQL expertise by showing you how to master the WHERE clause using real winter weather data.
Find more tutorials on the SAS Users YouTube channel.