README for physical geography and population (physfact_rev.*)

This dataset was revised on August 31, 2001.

Variables in this data set: latitude and longitude of each country's centroid, mean elevation, mean distance to nearest ice-free coastline, mean distance to nearest ice-free coastline or sea-navigable river, distance from a country's centroid to nearest coastline, distance from a country's centroid to nearest coastline or sea-navigable river, total population, percent of population within 100km of the coastline, percent of the population within 100km of  the nearest coastline or sea-navigable river, percent of land area within 100km of the coastline, percent of land area within 100km of  the nearest coastline or sea-navigable river, percent of population in the geographic tropics, percent of population in the ecological tropics (REMOVED), percent land area in the geographic tropics, and the typical population density an average person experiences, by country.

Description of data (Word file) is a Microsoft Word document (physfact_rev-dta.doc) containing a list of each variable within the physical geography and population data set, a description of each variable, how the variable was created, the source of the variable, and any extra notes.

Stata do file is a program (physfact_rev.do) written in Stata to load the data in physfact_rev.csv and create the variable labels etc. in physfact_rev.dta. It can be used as a model to load the data into other statistical packages besides Stata.

Stata data file is the Stata data set with the physical geography and population data by country (physfact_rev.dta).

ASCII file is a comma separated value file (physfact_rev.csv) of the  physical geography and population data that can be opened as a spreadsheet in Excel, or used in conjunction with the Stata do file (physfact_rev.do).