laa_data {halk} | R Documentation |
Example length-at-age data
Description
Simple age-structured population data with age and length records for each
individual. laa_data
represents a well-sampled age-length dataset,
whereas laa_data_low_n
is one with few total samples,
laa_data_low_age_n
is one with few samples in some ages,
and laa_data_few_ages
is a dataset with few age groups sampled.
Species specific datasets are similar, but with the prefix laa_
replaced by spp_
. These datasets contain species specific
length-at-age data
Usage
laa_data
laa_data_low_n
laa_data_low_age_n
laa_data_few_ages
spp_data
spp_data_low_n
spp_data_low_age_n
spp_data_few_ages
Format
## 'laa_data' A data.frame with 244 rows and 2 columns:
- spp
Species, only applicable for spp_data_* data.frames
- age
Age of individual
- length
Length of individual (arbitrary units)
## 'laa_data_low_n' A data.frame with 27 rows and 2 columns:
## 'laa_data_low_age_n' A data.frame with 74 rows and 2 columns:
## 'laa_data_few_ages' A data.frame with 49 rows and 2 columns:
## 'spp_data' A data.frame with 1022 rows and 3 columns:
## 'spp_data_low_n' A data.frame with 87 rows and 3 columns:
## 'spp_data_low_age_n' A data.frame with 160 rows and 3 columns:
## 'spp_data_few_ages' A data.frame with 261 rows and 3 columns: