nay-class: Class "nay" for normalisation at age per year
In FLEDA: Exploratory Data Analysis for FLR

Description Creating Objects from the Class Slots Extends Methods Details See Also Examples

This class encapsulates results of a nay method.

Objects of this classe should be created with a call to the constructor function nay(object, ...), where object must be an object of class "FLQuant" and ... can be used to pass trim arguments to the creator funtion.

nay: object of class "FLQuant".

Class "FLQuant", directly.

Inherits from "FLQuant".

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" object, the computation of nay P_{ay} is:

P_{ay}=\frac{C_{ay}}{\max_a{C_{ay}}}

FLQuant-class, trim

data(ple4sex)
# compute catch proportions at age
ple4sex.nay <- nay(ple4sex@catch.n)
# fine tune 
ttl <- list(label="Catch proportion at age for Plaice in IV", cex=1)
yttl <- list(label="age", cex=0.8)
xttl <- list(cex=0.8)
ax <- list(cex=0.7)
# plot
bubbles(age~year|unit, ple4sex.nay,  main=ttl, ylab=yttl, xlab=xttl, scales=ax)