A data frame with 1516 observations on the following 7 variables.
1516以下7个变量的观察数据框。
msa.cmsa.fips a character vector
msa.cmsa.fips字符向量
pmsa.fips a character vector
pmsa.fips字符向量
fips.state a character vector
fips.state字符向量
fips.county a character vector
fips.county字符向量
central.outlying a character vector
central.outlying字符向量
place a character vector
place字符向量
name a character vector
name字符向量
Details
详细信息----------Details----------
Metropolitan areas and components, 1999. Built from http://www.census.gov/population/estimates/metro-city/99mfips.txt. This is primarily for use in MSA.
大都市区的组成部分,1999年。内置从http://www.census.gov/population/estimates/metro-city/99mfips.txt。这是主要用于在MSA。