PoptFunc: Proportion of specimens within optimum length range in the...
In natureanalytics-ca/fishLengthAssess: Length-based Evaluation of Fish Stock and Fishery
View source: R/methodsAssess.R
PoptFunc R Documentation
Proportion of specimens within optimum length range in the catch
Description
Froese, R., 2004. Keep it simple: three indicators to deal with overfishing. Fish. Fish 5, 86-91. Proportion of the length observations that are equal to or greater than 0.9Lopt and equal to or less than 1.1Lopt. Lopt obtained from LoptFunc
Usage
PoptFunc(LifeHistoryObj, LengthCompObj, byGroup = FALSE)
Arguments
LifeHistoryObj
A LifeHistory object from fishSimGTG.
LengthCompObj
A LengthComp object
byGroup
A logical indicating whether quantity is to be calculated separately for each of multiple length comp groups (TRUE) or to length comp is to be pooled across groups prior to calculating quantity (default = FALSE). When TRUE, pooling is ignored if only a single group exists.
Examples
library(fishSimGTG)
PoptFunc(fishSimGTG::LifeHistoryExample, fishLengthAssess::LengthCompExampleFreq, byGroup = FALSE)
natureanalytics-ca/fishLengthAssess documentation built on Feb. 28, 2025, 5:46 a.m.
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View source: R/methodsAssess.R
| PoptFunc | R Documentation |
Proportion of specimens within optimum length range in the catch
Description
Froese, R., 2004. Keep it simple: three indicators to deal with overfishing. Fish. Fish 5, 86-91. Proportion of the length observations that are equal to or greater than 0.9Lopt and equal to or less than 1.1Lopt. Lopt obtained from LoptFunc
Usage
PoptFunc(LifeHistoryObj, LengthCompObj, byGroup = FALSE)
Arguments
LifeHistoryObj |
A LifeHistory object from fishSimGTG. |
LengthCompObj |
A LengthComp object |
byGroup |
A logical indicating whether quantity is to be calculated separately for each of multiple length comp groups (TRUE) or to length comp is to be pooled across groups prior to calculating quantity (default = FALSE). When TRUE, pooling is ignored if only a single group exists. |
Examples
library(fishSimGTG)
PoptFunc(fishSimGTG::LifeHistoryExample, fishLengthAssess::LengthCompExampleFreq, byGroup = FALSE)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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