Fish: Length and number of fish caught with small and large mesh...
In BSDA: Basic Statistics and Data Analysis

Fish	R Documentation

Length and number of fish caught with small and large mesh codend

Description

Data for Exercises 5.83, 5.119, and 7.29

Usage

Fish

Format

A data frame/tibble with 1534 observations on two variables

codend: a character variable with values smallmesh and largemesh
length: length of the fish measured in centimeters

Source

R. Millar, “Estimating the Size - Selectivity of Fishing Gear by Conditioning on the Total Catch,” Journal of the American Statistical Association, 87 (1992), 962 - 968.

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples


tapply(Fish$length, Fish$codend, median, na.rm = TRUE)
SIGN.test(Fish$length[Fish$codend == "smallmesh"], conf.level = 0.99)
## Not run: 
dplyr::group_by(Fish, codend) %>%
         summarize(MEDIAN = median(length, na.rm = TRUE))

## End(Not run)

BSDA documentation built on Sept. 19, 2023, 1:08 a.m.