catch: Catch Data

In TobieSurette/gulf.data: Southern Gulf of St Lawrence Data Access

Catch Data

Description

Extract or generate catch data summaries.

Usage

catch(x, ...)

## S3 method for class 'scsbio'
catch(x, by = key.scsset(), category, species, weight = FALSE, ...)

## S3 method for class 'scslen'
catch(x, by = key.scslen(), species, ...)

Arguments

x	Target object.
...	Other parameters (not used).
by	Character string(s) specifying which variables to group by when summararizing.
category	Biological category string(s). See category for more details.
weight	Logical value specifying whether to return a summary by weights rather than counts.
value	Object containing catch data to be assigned.

Methods (by class)

• catch(scsbio): Snow crab biological data catch summaries.

• catch(scslen): Snow crab by-catch length data catch summaries.

Examples

s <- read.scsset(2020)  # Tow data.
b <- read.scsbio(2020)  # Biological data.

# Generate catch summaries from biological data:
catch(b) # Total crab.
catch(b, category = c("M", "F"), by = c("date"))
catch(b, category = c("COM"), by = c("date", "tow.id"))
catch(b, category = category(1:10), by = c("date", "tow.id"))

TobieSurette/gulf.data documentation built on Jan. 19, 2025, 7:50 p.m.