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I.   File Organization:

     The files in the Residential Housing Patterns directory contain 19 indexes of
     residential housing patterns for each race/ethnicity group and place.
     There is one record per race/ethnicity group and place. There is one file 
     for each year and each race/ethnicity group and one file for each year with 
     all groups combined. All indexes were calculated using Non-Hispanic Whites as 
     the reference group.  The unit of analysis is the census tract.  The number 
     of race/ethnicity groups and places are indicated below.

                         Number of         Number of
             Year   Race/Ethnicity Groups   Places

             2000            6               1092


     Note: Residential Housing Patterns Indexes can only be shown for places with:
    
     . at least 10 Census tracts
     . a total population of 10,000 or more
     . a minority population of 100 or more for the group in question


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II.  File Names:

     2000 Files:

       The Unit of Analysis is the Census Tract

         rs2000ALL_place.dat     ALL race/ethnicity groups
         rs2000aian_place.dat    American Indian and Alaska Native 
         rs2000api_place.dat     Asian and Pacific Islander
         rs2000asian_place.dat   Asian
         rs2000nhopi_place.dat   Native Hawaiian and Other Pacific Islander
         rs2000black_place.dat   Black or African American
         rs2000hisp_place.dat    Hispanic

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III. Record Layout

     Position       Variable

       1-  4        Year
       6- 10        Race/Ethnicity group
      12- 13        FIPS state code
      15- 19        FIPS place code
      21- 88        Place name
      91- 99        Place total population
     101-109        Place minority population
     111-117        Atkinson index with b=.1 (A1)
     119-125        Atkinson index with b=.5 (A5)
     127-133        Atkinson index with b=.9 (A9)
     135-141        Absolute Centralization index (ACE)
     143-149        Absolute Clustering index (ACL)
     151-157        Absolute Concentration index (ACO)
     159-165        Correlation ratio or Eta squared (V)
     167-173        Dissimilarity index (D)
     175-181        Distance Decay Isolation index (DPxx*)
     183-189        Distance Decay Interaction index (DPxy*)
     191-197        Duncan's Delta index (DEL)
     199-205        Entropy index (H)
     207-213        Gini index (G)
     215-221        Interaction index (xPy*)
     223-229        Isolation index (xPx*)
     231-237        Relative Centralization index (RCE)
     239-245        Relative Clustering index (RCL)
     247-253        Relative Concentration index (RCO)
     255-261        Spatial Proximity index (SP)

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