There are several data sets in the MAPSGFK library that
enable you to easily label maps. Some of their names differ from any
traditional data sets that you might have used. Though the non-map
data sets contain coordinates for map features such as cities, they
cannot be used as map data sets.
contains the coordinates
of the visual center of each state in the U.S. and Washington, D.C.,
Puerto Rico, and the U.S. Virgin Islands. It also contains coordinates
in the ocean for states that are too small to contain a label. There
are two pairs of variables for locating labels using Annotate data
sets. The X and Y variables contain projected coordinates and can
be used with the MAPSGFK.US_ALL data set. The LONG and LAT variables
contain the unprojected longitude and latitude in degrees (not radians).
These can be used to place labels on any US data set, noting that
you can subset the data set by state as needed.
is similar to USCENTER_ALL,
except that it does not include Puerto Rico and the U.S. Virgin Islands.
The X and Y variables contain projected coordinates and can be used
with the MAPSGFK.US data set.
contains the locations
of selected cities in the U.S. Many city names occur in more than
one state, so you might have to subset by state to avoid duplication.
There are two pairs of variables for locating labels using Annotate
data sets. The X and Y variables contain projected coordinates and
can be used with the MAPSGFK.US_ALL data set. The LONG and LAT variables
contain the unprojected longitude and latitude in degrees (not radians).
These can be used to place labels on any US data set, noting that
you can subset the data set by state as needed.
is similar to USCITY_ALL,
except that it does not include Puerto Rico and the U.S. Virgin Islands.
The X and Y variables contain projected coordinates and can be used
with the MAPSGFK.US data set.
Duplicate observations
can be listed in the output data set. This occurs because the map
data set includes towns, villages, hamlets, and other non-city areas
that can share the same name with a city.
contains a projected
US county map with Alaska and Hawaii in physical locations. Puerto
Rico is not included. Many county names occur in more than one state,
so you might have to subset by state to avoid duplication. The LONG
and LAT variables contain the unprojected longitude and latitude in
degrees (not radians). These can be used to place labels on any US
data set, noting that you can subset the data set by state as needed.
contains a projected
US state map with Alaska and Hawaii in physical locations. Puerto
Rico is not included. The LONG and LAT variables contain the unprojected
longitude and latitude in degrees (not radians). These can be used
to place labels on any US data set, noting that you can subset the
data set by state as needed.
contains a projected
US state map with Alaska and Hawaii inset into the map. Puerto Rico
is not included. The LONG and LAT variables are not included.
contains a projected
US county map with Alaska and Hawaii in physical locations. Puerto
Rico and the United States Virgin Islands are included. Many county
names occur in more than one state, so you might have to subset by
state to avoid duplication. The LONG and LAT variables contain the
unprojected longitude and latitude in degrees (not radians). These
can be used to place labels on any US data set, noting that you can
subset the data set by state as needed.