APPENDIX G.
Record Layout of Machine-Readable
Data Dictionary
CONTENTS
This appendix provides the record layout for the machine-readable data
dictionary file that accompanies each data tape. This data dictionary
was developed as a ``generic'' dictionary that, with some programming,
could be converted for use with specific software packages.
Geographic Record 1--Field Mnemonic, Size, and Type
Position Description
1-2 Identifier ``G1'' (Geographic Record 1)
3 Blank
4-11 Field mnemonic (left justified)
12 Blank
13-14 Field size (right justified)
15 Blank
16-18 Data type (left justified)
Note: Legal entries are A, N, and A/N
19 Blank
20-24 Begin position (right justified)
(Begin position in relation to the entire record)
25 Blank
26-30 Relative begin position (right justified)
(Begin position in relation to the record segment)
31 Blank
32 Number of implied decimals
33-80 Blank
Geographic Record 2--Field Description
Position Description
1-2 Identifier ``G2'' (Geographic Record 2)
3 Blank
4-8 Begin position (right justified) (repeat from 20-24 above)
9 Blank
10-80 Field Description (left justified)
Geographic Record 3--Code Identification
Position Description
1-2 Identifier ``G3'' (Geographic Record 3)
3 Blank
4-8 Begin position (right justified) (repeat from 20-24 in G1)
9 Blank
10-17 Codes (right justified)
18 Blank
19-80 Code identification (left justified)
Geographic Description Examples(1)
Examples of the geographic records are shown below. In example 1, there
are no G3 records. G3 records will appear only for fields which have
code listings in the technical documentation.
Example 1
G1 FILEID 8 A/N 1 1 0
G2 1 File Identification
Example 2
G1 PSADC 2 A/N 289 289 0
G2 289 Political/Statistical Area Description Code
G3 289 01 State or State equivalent - no status is appended to
G3 289 01 the name of the entity in census publications and
G3 289 01 related data products
G3 289 04 Borough - county equivalent in Alaska; "Borough" is
G3 289 04 appended to the name of the entity in census public-
G3 289 04 ations and related data products
G3 289 05 Census area - county equivalent in Alaska; "Census
G3 289 05 Area" is appended to the name of the entity in census
G3 289 05 publications and related data products
(1)Examples are for illustrative purposes and are not specific to this
STF.
Table Record 1--Table Number and Characteristics
Position Description
1-2 Identifier ``T1'' (Table Record 1)
3 Blank
4-9 Table (matrix) number (left justified)
10 Blank
11-17 Begin position (right justified)2
(Begin position in relation to the entire record)
18 Blank
19-25 Relative begin position (right justified)2
(Begin position in relation to the record segment)
26 Blank
27-28 Cell size for this table (matrix) (right justified)
29 Blank
30 Number of implied decimals for cells in this table (matrix)
31 Blank
32-38 Number of cells in this table (matrix) (right justified)2
39 Blank
40-42 Number of variables (right justified)
43-80 Blank
Table Record 2--Table Title
Position Description
1-2 Identifier ``T2'' (Table Record 2)
3 Blank
4-9 Table (matrix) number (left justified)
10 Blank
11-80 Table (matrix) title (left justified)
Table Record 3--Universe Description
Position Description
1-2 Identifier ``T3'' (Table Record 3)
3 Blank
4-9 Table (matrix) number (left justified)
10 Blank
11-80 Universe Description (left justified)
Table Record 4-N--Table Variable Descriptions
Position Description
1-2 Identifier ``Tn'' n= sequence number of variable in the
table being described.
3 Blank
4-9 Table (matrix) number (left justified)
10 Blank
11-76 Variable name (left justified)
77 Blank
78-80 Number of categories for this variable (right justified)
Note: Subsequent ``T'' records with the same ``n'' will
have the variable categories described in positions 11-80.
Filler Record
Position Description
1-2 Identifier ``F1'' (Filler Record)
3 Blank
4-7 ``FILL''
8-10 Blank
11-17 Begin Position (right justified) (Begin position in
relation to the entire record)2
18 Blank
19-25 Relative Begin Position (right justified) (Begin position
in relation to the record segment)2
26 Blank
27-30 Total number of ``FILL'' blanks
31-80 Blank
Matrix Example(1)
Example 3. Matrix Example
Sex (2) by Marital Status(5) [10]
T1 P14 4423 4423 9 0 10 2
T2 P14 SEX BY MARITAL STATUS
T3 P14 Persons 15 years and over
T4 P14 SEX 2
T4 P14 Male
T4 P14 Female
T5 P14 MARITAL STATUS 5
T5 P14 Never married
T5 P14 Now married, except separated
T5 P14 Separated
T5 P14 Widowed
T5 P14 Divorced
(1)Examples are for illustrative purposes and are not specific to this STF.
(2)These positions have been increased to accommodate all record sizes.
Previous products had less characters; future products (STF 3 PR,
STF 3 VI, STF 4, etc.) will have the above structure.