Noms de champs ESRI?

Un fichier de formes que j'ai récupéré du site de redécoupage de la Pennsylvanie contient des noms de champs comme TAPERSONS, TA1RACE. TAWHITEALN. TABLACKALN...ouVAPERSONS, VA1RAC, VAWHITEALN...

Certains experts en criminalistique en ligne suggèrent qu'il s'agit d'une sorte de nom de champ fourni par ESRI. Cependant, je ne trouve pas de modèle de données ou de livre de codes décrivant les définitions de champ. Je préfère ne pas essayer de deviner ce qu'ils signifient, bien que les noms suggèrent des données démographiques.

Quelqu'un peut-il me diriger vers un endroit où je peux trouver les définitions?

Les noms de vos champs semblent être liés aux données du RECENSEMENT (très similaire à ce fichier )

La réponse @Map_man vous mènera à la source de vos données, bien sûr.

Voir ici quelques métadonnées qui semblent correspondre: https://www.arcgis.com/sharing/rest/content/items/ba931cd7a8f341ed9486a41c6f6798d4/info/metadata/metadata.xml?format=default&output=html

Attribute Label: ID
Attribute Definition: Unique identifying number for each record.

Attribute Label: STFID
Attribute Definition: Federal Information Processing Standard (FIPS) code. State + County + Tract + Block number

Attribute Label: BLKGRP
Attribute Definition: Block group number.

Attribute Label: TAPERSONS
Attribute Definition: Total 2000 population for a block group.

Attribute Label: TA1RACE
Attribute Definition: Total number of people identifying themselves as being only one race.

Attribute Label: TAWHITE
Attribute Definition: Number of people identified as only White.

Attribute Label: TABLACK
Attribute Definition: Number of people identified as only Black.

Attribute Label: TAAMERIND
Attribute Definition: Number of people identified as only American Indian, Eskimo, or Aleut.

Attribute Label: TAASIAN
Attribute Definition: Number of people identified as only Asian.

Attribute Label: TAHAWPAC
Attribute Definition: Number of people identified as only Hawaiian/Pacific Islander.

Attribute Label: TA1OTHER
Attribute Definition: Number of people identified as belonging to a race other than white, black, American Indian, or Asian.

Attribute Label: TA2MRACE
Attribute Definition: Number of people identified as belonging to more than one race.

Attribute Label: TA2RACES
Attribute Definition: Number of people identified as belonging to two races.

Attribute Label: TA3RACES
Attribute Definition: Number of people identified as belonging to three races.

Attribute Label: TA5RACES
Attribute Definition: Number of people identified as belonging to five races.

Attribute Label: TA6RACES
Attribute Definition: Number of people identified as belonging to six races.

Attribute Label: TNTOTAL
Attribute Definition: Total 2000 population for a block group.

Attribute Label: TNHISPANIC
Attribute Definition: Number of people identifying themselves as Hispanic.

Attribute Label: TNNONHISP
Attribute Definition: Number of people identifying themselves as Non-Hispanic.

Attribute Label: TN1RACE
Attribute Definition: Number of Non-Hispanic people identified as belonging to one race.

Attribute Label: TNWHITE
Attribute Definition: Number of Non-Hispanic people identified as being White.

Attribute Label: TNBLACK
Attribute Definition: Number of non-hispanic people identified as being Black.

Attribute Label: TNAMINAKN
Attribute Definition: Number of non-hispanic people identified as being American Indian, Eskimo, or Aleut.

Attribute Label: TNASIAN
Attribute Definition: Number of Non-Hispanic people identified as being Asian.

Attribute Label: TNHAWOP
Attribute Definition: Number of non-hispanic people identified as being Hawaiian or Pacific Islander.

Attribute Label: TNOTHER
Attribute Definition: Number of non-hispanic people identified as being White, Black, American Indian, or Asian.

Attribute Label: TN2MRACE
Attribute Definition: Number of Non-Hispanic people identified as belonging to 2 or more races.

Attribute Label: TN2RACES
Attribute Definition: Number of Non-Hispanic people identified as belonging to 2 races.

Attribute Label: TN3RACES
Attribute Definition: Number of Non-Hispanic people identified as belonging to 3 races.

Attribute Label: TN4RACES
Attribute Definition: Number of Non-Hispanic people identified as belonging to 4 races.

Attribute Label: TN5RACES
Attribute Definition: Number of Non-Hispanic people identified as belonging to 5 races.

Attribute Label: TN6RACES
Attribute Definition: Number of Non-Hispanic people identified as belonging to 6 races.

Attribute Label: ALLAFAM
Attribute Definition: Number of people identifying themselves as being of African American descent.

Attribute Label: ALLAMIND
Attribute Definition: Number of people identifying themselves as being of American Indian descent.

Attribute Label: ALLASIAN
Attribute Definition: Number of people identifying themselves as being of Non-Hispanic descent.

Esri fournit des directives sur les conventions de dénomination, mais pas le contenu des noms eux-mêmes. Par exemple, les fichiers de formes ont une limite de 10 caractères, les noms de fichiers d'images raster plafonnent à 13 caractères, aucun ne doit avoir d'espace ...

Votre réponse ne proviendra probablement pas d'un site Esri. Vous devez creuser dans l'ensemble de données et contacter les propriétaires d'origine pour leurs métadonnées, pour une réponse exacte. Habituellement, les documents comme celui-ci sont livrés avec un fichier README.txt.

Esri possède le modèle d'informations du gouvernement local (LGIM) qui donne des recommandations pour nommer les objets communs. Cela pourrait donner quelques indications, mais encore une fois - le propriétaire de l'ensemble de données aurait pu établir ses propres règles internes.