Operations on formula terms and expressions

Operations on formula terms and expressions

# S4 method for lgprhs,lgprhs
+(e1, e2)

# S4 method for lgpterm,lgpterm
+(e1, e2)

# S4 method for lgprhs,lgpterm
+(e1, e2)

# S4 method for lgpterm,lgpterm
*(e1, e2)

Arguments

e1	The first sum, term or expression
e2	The second sum, term or expression

Value

The behaviour and return type depend on the types of e1 and e2. You can

• sum (+) two lgprhs's to yield an lgprhs

• sum (+) two lgpterm's to yield an lgprhs

• sum (+) an lgprhs and an lgpterm to yield an lgprhs

• multiply (*) two lgpterm's to yield an lgpterm