Class FLIndex

Description

A class designed to hold data and parameters related to abundance indices

Slots

type

(character) Type of index

distribution

(character): Statistical distribution of the index values

index

(FLQuant): Index values

index.var

(FLQuant): Variance of the index

catch.n

(FLQuant): Catch numbers used to create the index

catch.wt

(FLQuant): Catch weight of the index

effort

(FLQuant): Effort used to create the index

sel.pattern

(FLQuant): Selection pattern for the index

index.q

(FLQuant): Catchability of the index

name

(character): Name of the stock inherited from FLComp-class

desc

(character): General description of the object inherited from FLComp-class

range

(numeric):

{Range of the object inherited from FLComp-class}

Extends

FLComp

Methods

catch.n(FLCore) :

Accessor for the catch.n slot in the object

signature(object=missing)

catch.n<-(FLCore) :

Replacement function for the catch.n slot in the object

signature(object=FLIndex,value=FLQuant)

catch.wt(FLCore) :

Accessor for the catch.n slot in the object

signature(object=missing)

catch.wt<-(FLCore) :

replacement function for the catch.wt slot in the object

signature(object=FLIndex,value=FLQuant)

coerce(methods) :

Describe method

signature(from=NULL,to=FLIndex,strict=missing)

computeCatch(FLCore) :

Compute the catch in the FLIndex method, as catch.n and catch.wt

signature(object=missing)

dims(FLCore) :

returns the dims of the objects

signature(obj=missing)

iter(FLCore) :

To extract or modify a subset of the iterations contained in the FLIndex object, the iter and iter<- methods can be used

signature(object=missing)

plot(graphics) :

Plot the FLIndex-class, takes an additional argument type, which defines the type of plot

signature(x=FLIndex,y=missing)

propagate(FLCore) :

FLIndex objects with a single iteration (length of 1 in the sixth dimension) can be extended using the propagate method. The type argument selects whether the new iterations are filled with the content of the first iteration (type='all') or left empty (type='first')

signature(object=missing)

summary(base) :

summary is a generic function used to produce result summaries of the FLIndex

signature(object=missing)

transform(base) :

Transform allows to change a number of slots of class FLQuant to be changed at once

signature(_data=missing)

trim(FLCore) :

Subsetting of FLIdex object can be carried out using the dimension names by using trim. A number of dimension names and selected dimensions are passed to the method and those are used to subset the input object.

signature(object=missing)

window(stats) :

This method extracts a section of or extends the FLInedex object along the year dimension. If a frequency is specified, the new object contains data at only those year steps.

signature(x=missing)

Author(s)

The FLR Team

See Also

catch.n, catch.n<-, catch.wt, catch.wt<-, coerce, computeCatch, dims, iter, plot, propagate, summary, transform, trim, window, FLComp