| sp,FLBRP,missing,ANY-method | R Documentation | 
Calculates the surplus production.
## S4 method for signature 'FLBRP,missing,ANY'
sp(stock, rel = TRUE)
| m | An object of class  | 
object of class FLQuant with sp estimate
FLCore::sp()
data(ple4brp)
sp(ple4brp)
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