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Fishery Science Department
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B2: Modelling length at age and length distributions
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Models of length distributions
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Models of length distributions
Take a drill on this lecture
Download all lecture slides
Slides
Data files
Slides
Code
Name
sl00
Statistical and other models of length distributions
sl05
Cohort slicing
sl10
The distribution of length at age
sl20
The Gaussian density and cdf
sl30
The proportion within a length group
sl40
Statistical estimation of proportions at age
sl50
Setting initial values
sl52
Estimating proportions alone
sl54
Typical parameter reduction - sigma
sl56
Full run
sl70
Parameter reduction - using a growth curve
sl80
Caveats
sl99
The next steps
Data files
Filename
Title
base.png
base.png
base30.dat
base30
functions1.r
function1
functions2.r
function2
functions3.r
function3
init1.r
init1
init2.r
init2
init3.r
init3
sl10_SlideImage
sl10_SlideImage
sl20_SlideImage
sl20_SlideImage
sl40_SlideImage
sl40_SlideImage
sl50_SlideImage
sl50_SlideImage
sl52_SlideImage
sl52_SlideImage
sl54_SlideImage
sl54_SlideImage
sl56_SlideImage
sl56_SlideImage
sl60_SlideImage
sl60_SlideImage
sl99_SlideImage
sl99_SlideImage
ssewithfixedlength.r
SSEwithfixedlength.R
sumofsquaresfixedlength.r
sum of squares fixed length.R
vonbgrowthcurve.r
vonB growth curve.R