What is this statement trying to do:

[goliPSU]

round(Z[,+]+ y - t(Z[+,]+v+m),.1)

I am not familiar with SAS, what [,+], and [+,] will do on Z matrix and what is their difference.

Thank you

[PGStats]

Is this Proc IML programming code? Please note there is a support community for IML : https://communities.sas.com/community/support-communities/sas_iml_and_sas_iml_studio

PG