Database Reference
In-Depth Information
Measure Values
This continuous numeric field contains all of the numerical values of the Measures: every
number included in the table, whether population, area, or year.
Number of Records
This numeric field is a count of the entries in the data source. This field is useful for
showing how many of each dimension exists in the data set.
Figure 2-6
shows how the
Number of Records
for each borough is 1 (there is 1 row for each borough) and the
Number of Records
for the state of New York is 5 (there are 5 rows that all have the
string value “New York” in the
State
field).
Latitude (generated)
and
Longitude (generated)
These fields are the coordinates that correspond to the fields recognized as geographic
data types (
County
and
State
). Tableau automatically recognizes a number of geograph-
ic fields and generates latitidue and longitude coordinates. For example, as shown in Fig-
the center of each county, and double-clicking
State
creates a symbol map with a single
circle in the center of the state of New York.