Differences between SKAT.SSD.Al and SKATBinary.SSD.All

Question

[wanabi]

Hello, there are two ways to perform a SKAT-O test with SKAT R package. Does anyone now the differences between the two options below?

1. SKAT.SSD.All(SSD.INFO,obj1,method="optimal.adj",obj.SNPWeight=Read_SNP_WeightFile(WEIGHTS))
2. SKATBinary.SSD.All(SSD.INFO,obj2,method="SKATO",obj.SNPWeight=Read_SNP_WeightFile(WEIGHTS))