Cleans triennial survey data by year and area

Usage

ReadInAges.fn(dat, subset_years = NULL, verbose = TRUE)

Arguments

dat: data file name
subset_years: specify the years to retain, default is NULL which will provide 1977, alternative input would be 1980:2002 to remove only 1977.
verbose: A logical that specifies if you want to print messages and warnings to the console. The default is TRUE.

Details

Reads in the West Coast Trienial survey data and filters the data into what is necessary. It reads in data and makes sure only the species necessary are kept may want to keep NA (blank in Excel) to select the zero tows removeCAN is a flag if you want tows in Canadian waters removed.

Necessary column names SPECIES_CODE AGE

Author

Allan Hicks and Chantel Wetzel