EnsCat (version 1.1)

USFlag: United States Flag Privately-Owned Merchant Fleet Data

Description

This dataset includes 10 categorical variables that describe U.S. flag privately owned merchant fleet vessels, based on data provided by the United Stated Department of Transportation Maritime Administration (MARAD).

Usage

data("USFlag")

Format

The format of the data is a list with components $lab and $obs. The component $lab contains a categorical indicator of Ship Type (see below). The component $obs includes a matrix of dimension 170x10 that contains categorical data on 170 United States flag privately owned merchant fleet vessels. The columns are as follows: Ship.Type a categorical variable with 5 levels, Containership [1], Dry Bulk [2], General Cargo [3], Ro-Ro [4], and Tanker [5], indicating the ship type. This is identical to $lab. Gross.Tonnage a categorical variable with 6 levels, <20000gt [1],="" 20000-40000gt="" [2],="" 40000-60000gt="" [3],="" 60000-80000gt="" [4],80000-100000gt="" [5],="">100000GT [6], indicating the ship gross tonnage Deadweight a categorical variable with 6 levels, <20000dwt [1],="" 20000-40000dwt="" [2],="" 40000-60000dwt="" [3],="" 60000-100000dwt="" [4],="" 100000-140000dwt="" [5],="">140000DWT [6], indicating the ship deadweight Year.Built a categorical variable with 6 levels, <1960 [1],="" 1961-1980="" [2],="" 1981-1990="" [3],="" 1991-2000="" [4],="" 2001-2010="" [5],="" and="">2010 [6], indicating the year of completion of ship construction Operator a categorical variable with 49 levels indicating the operator of the ship MSP a binary variable indicating whether the ship is [1] or is not [0] part of the maritime security program VISA a binary variable indicating whether the ship is [1] or is not [0] part of the Voluntary Intermodal Sealift Agreement VTA a binary variable indicating whether the ship is [1] or is not [0] part of the Voluntary Tanker Agreement Jones.Act.Eligible a binary variable indicating whether the ship is [1] or is not [0] Jones Act Eligible. These vessels are eligible to participate in domestic trade. Jones Act eligible vessels are built in the United States, owned by United States citizens and crewed by U.S. Mariners Militarily.Useful a binary variable indicating whether the ship is [1] or is not [0] considered a militarily useful sealift vessel For more information on these definitions please see IHS Maritime, Sea-Web. www.sea-web.com

Source

United States Maritime Administration (MARAD) Open Data Portal. http://www.marad.dot.gov/resources/data-statistics/

Details

This data includes categorical variables that describe U.S. flag privately owned merchant fleet vessels. Information is provided only for oceangoing, self-propelled, cargo-carrying vessels of 1,000 gross tons and above. These data are based on information from the U.S. Department of Transportation Maritime Administration (MARAD) as of 3/3/2015, obtained from the MARAD Open Data Portal (http://www.marad.dot.gov/resources/data-statistics/).

Examples

### load USFlag maritime data
data("USFlag")
### the following codes define the labels of the data by genera and host.
dim(USFlag$obs)
#[1] 170  10
length(USFlag$lab)
#[1] 170