normalize: Normalize shipname, callsign, and economic unit

In jcvdav/startR: startR

Normalize shipname, callsign, and economic unit

Description

Performs a series of string normalizations to get a clean shipname or callsign. This was inspired by Jaeyoon Park's Python Module: https://github.com/jaeyoonpark/shipdataprocess.

normalize_shipname will do the following:

• Make all letters into capital letters

• Remove leading and trailing whitespaces

• Remove linebreaks

• Remove all references to vessel codes (i.e. MFV stands for Marine Fishing Vessel)

• Convert numbers expressed as letters to numbers (i.e. ONE becomes 1)

• Convert roman numerals to arabic numbers

• Remove NO. when it references a number (i.e. BOAT NO.5 becomes BOAT5)

• Remove all special characters

normalize_callsign will:

• Make all letters into capital letters

• Remove leading and trailing whitespaces

• Remove linebreaks

• Remove leading zeroes (i.e. 007JAMESBOND becomes 7JAMESBOND)

• Remove all special characters

Usage

normalize_shipname(name, ...)

normalize_callsign(callsign, ...)

normalize_economic_unit(economic_unit, ...)

Arguments

name	A character string (or vector of strings) to be normalized
...	Any other arguments
callsign	A character string (or vector of strings) to be normalized
economic_unit	A character string (or vector of strings) to be normalized

Value

A normmalized shipname or callsign

Examples

# Normalize a shipname that contains special
# characters and roman numerals.
library(startR)
shipname <- "weird-+%()<>$;!&'`#/boat name IV"
normalize_shipname(shipname)

# Normalize a callsign starting with zeros
# and weird characters
callsign <- "0020300a-+%()<>$;!&'`#/"
normalize_callsign(callsign)

jcvdav/startR documentation built on May 2, 2024, 8:30 p.m.