logcc-class {FLEDA} | R Documentation |
This class encapsulates results of a log ratio at age per cohort method.
Objects of this classe should be created with a call to the contructor function logcc(object, ...)
, where object
must be an object of class "FLQuant"
and ...
can be used to pass trim
arguments to the creator funtion.
Class "FLCohort"
, directly.
Inherits from "FLCohort"
.
Considering C_{ay}, the catch in numbers at age a=1,...,A per year y=1,...,Y, obtained e.g. from the catch.n slot of a "FLStock"
, the computation of logr
L_{ay} is:
L_{ay}=log{frac{C_{ay}}{C_{a+1,y+1}}}
FLQuant-class
, trim
, FLCohort-class
data(ple4sex) # compute logcc ple4sex.cc <- logcc(ple4sex@catch.n) # fine tune plot ttl <- list(label="Log catch curves by sex for plaice in IV", cex=1) yttl <- list(label="log ratio", cex=0.8) xttl <- list(cex=0.8) stripttl <- list(cex=0.8) ax <- list(cex=0.7) # plot ccplot(data~age|unit, data=ple4sex.cc, type="l", main=ttl, ylab=yttl, xlab=xttl, scales=ax, par.strip.text=stripttl, col=1)