Hello -
You may want to have a look at: http://go.documentation.sas.com/?docsetId=etsug&docsetVersion=14.2&docsetTarget=etsug_tffordet_sect016.htm&locale=en#etsug_tffordet000750
Details are provided here: http://go.documentation.sas.com/?docsetId=etsug&docsetVersion=14.2&docsetTarget=etsug_tffordet_sect021.htm&locale=en#etsug_tffordet001867
Thanks,
Udo
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