FlagTows: A "Where Clause" or Filter for Bay Study Tows.

In jasondubois/sportfish: Methods and Function for CDFW Sportfish Unit Data

Description

Flags "valid" tows per select criteria. Typically, excluded are tows 52, 53, and 58; station #141 (only sampled a few months, then dropped); and stations #317 and #319 in 1980 and 1981-01 (split surveys, used stations #324 and #326, which were the same locations, sampled 1-2 weeks later).

Usage

FlagTows(data, station, year, survey, tow)

Arguments

data	Dataframe of Bay Study data with at least station, year, survey, and tow.
station	Name of field in data holding station info.
year	Name of field in data holding year (i.e., extracted from date).
survey	Name of field in data holding survey number.
tow	Name of field in data holding tow nubmer.

Value

List containing flagged records (-1 = flagged; O = OK to use) and number of records flagged.

References

Bay Study metadata (insert link).

Examples

# coming soon.

jasondubois/sportfish documentation built on July 3, 2020, 1:01 p.m.