Habitação Ames

A team of researchers collects data from the sale of individual residential properties in Ames, Iowa. The researchers want to identify the variables that affect the sale price. Variables include the lot size and various features of the residential property.

You can use this data to demonstrate Regressão Random Forests®.

The second data set includes a small number of new data points for the same variables. You can use this data set to demonstrate Predição for Regressão Random Forests®.

Worksheet column Description
Preço de venda The sale price of the property
frontage lot The amount of linear feet of street connected to property
área de lote The lot size in square feet
área de revestimento The amount of masonry veneer area in square feet
Área do porão 1 The amount of type 1 finished basement area in square feet
Área do porão 2 The amount of type 2 finished basement area in square feet
área inacabada do porão The amount of unfinished basement area in square feet
área total do porão The total amount of basement area in square feet
Área do 1º andar The amount of area on the first floor in square feet
Área do 2º andar The amount of area on the second floor in square feet
área de baixa qualidade The amount of low quality finished are in square feet (all floors)
Área de convivência The amount of above grade living area in square feet
área de garagem The size of the garage in square feet
área do convés de madeira The wood deck area in square feet
área da varanda aberta The open porch area in square feet
varanda fechada The enclosed porch area in square feet
varanda de estação The three-season porch area in square feet
varanda de tela The screened porch area in square feet
Área da piscina The pool area in square feet
Valor diverso The monetary value of miscellaneous feature in dollars
ano construído The original construction date
ano remodelado The remodel date; this date is the same as construction date if no remodeling or additions
banheiros completos do porão The number of full bathrooms in the basement
Número de banheiros do porão The number of half bathrooms in the basement
Número de banheiros completos The number of full bathrooms above grade
número de meio banheiro The number of half bathrooms above grade
número de quartos The number of bedrooms above grade
número de cozinhas The number of kitchens above grade
quartos totais The total number of rooms above grade
número de lareiras The number of fireplaces
ano de garagem The original construction date of the garage
carros de garagem The size of garage in car capacity
mês vendido The month the property was sold
ano vendido The year the property was sold
tipo The type of property: 20, 30, 40, 45, 50, 60, 70, 75, 80, 85, 90, 120, 150, 160, 180, or 190
zona The type of zoning: 1, 2, 3, 4, 5, 6, or 7
rua The type of road access to property: Gravel or Paved
beco The type of alley access to property: Gravel or Paved
forma de lot The shape of the lot: 1, 2, 3, or 4
flatness terra The flatness of the property: Level, Bank, Hill, or Low
utilidades municipais The type of utilities available with the property: 1, 2, 3, or 4
configuração The configuration of the property: Inside, Corner, Cul-de-sac, Two sides, or Three sides
estilo inclinação The slope of the lot: 1, 2, or 3
Bairro The neighborhood of the property: Blmngtn, Blueste, BrDale, BrkSide, ClearCr, CollgCr, Crawfor, Edwards, Gilbert, Greens, GrnHill, IDOTRR, Landmrk, MeadowV, Mitchel, NAmes, NoRidge, NPkVill, NridgHt, NWAmes, OldTown, Sawyer, SawyerW, Somerst, StoneBr, SWISU, Timber, or Veenker
Condição 1 Proximity to various type 1 conditions: Artery, Feeder, Normal, Positive A, Positive N, Adjacent EW, Adjacent NS, Near EW, or Near NS
Condição 2 Proximity to various type 2 conditions: Artery, Feeder, Normal, Positive A, Positive N, Adjacent EW, Adjacent NS, Near EW, or Near NS
qualidade The overall material and finish quality of the property: 1–10
Condição The overall condition of the property: 1–10
estilo telhado The roof style of the property: Flat, Gable, Gambrel, Hip, Mansard, or Shed
Material do telhado The roof material: Tile, Composite, Membrane, Metal, Roll, Gravel, Shakes, or Wood
exterior tipo 1 The primary type of exterior covering on the house: Asbestos, Asphalt, Brick, Brick Face, Cinder, Cement, Board, Imitation Stucco, Metal, Plywood, PreCast, Stone, Stucco, Vinyl, Wood Siding, or Wood Shingle.
exterior tipo 2 The secondary type of exterior covering on the house: Asbestos, Asphalt, Brick, Brick Face, Cinder, Cement, Board, Imitation Stucco, Metal, Plywood, PreCast, Stone, Stucco, Vinyl, Wood Siding, or Wood Shingle.
tipo de revestimento The type of veneer on the house: Brick, Brick Face, Cinder, None, or Stone.
qualidade exterior The quality of the exterior material: 1, 2, 3, or 4
Condição exterior The condition of the exterior material: 1, 2, 3, 4, or 5
tipo de fundação The type of foundation: Brick, Cinder, Concrete, Slab, Stone, or Wood
Altura do porão The ceiling height rating of the basement: 1, 2, 3, 4, or 5
Condição do porão The general condition of the basement: 1, 2, 3, 4, or 5
Acesso ao porão The type basement access: 1, 2, 3, or 4
acabamento do porão tipo 1 The rating of basement finished area, type 1: 1, 2, 3, 4, 5, or 6
acabamento do porão tipo 2 The rating of basement finished area, type 2: 1, 2, 3, 4, 5, or 6
tipo de aquecimento The type of heating availalbe: Floor, Air, Water, Gravity, Other, or Wall
qualidade de aquecimento The overall heating quality: 1, 2, 3, 4, or 5
ar central Whether the house has central air conditioning: N or Y
tipo elétrico The type of electrical system: 1, 2, 3, 4, or 5
qualidade da cozinha The quality of the kitchen: 1, 2, 3, 4, or 5
função The function of the home with respect to deductions: 1, 2, 3, 4, 5, or 6
qualidade da lareira The fireplace quality: 1, 2, 3, 4, or 5
tipo de garagem The type of garage: Multiple, Attached, Basement, Built In, Car Port, Detached, or NA
Acabamento de garagem The type of interior garage finish: 1, 2, 3, or 4
qualidade da garagem The quality or the garage: 1, 2, 3, 4, or 5
Condição da garagem The general condition of the garage: 1, 2, 3, 4, or 5
unidade pavimentada Whether the driveway is paved: 1, 2, or 3
qualidade da piscina The quality of the pool: 1, 2, 3, 4, or 5
Cerca The quality of the fence: 1, 2, 3, 4, or 5
recurso misc Whether the property has the following miscellaneous features: Elevator, Second Garage, Shed, Tennis, Other, or None
tipo de venda The type of sale: Conventional, Cash, VA, New, Court, Contract, Low Both, Low Interest, Low Payment, or Other
Condição de venda The condition of the sale: Normal, Abnormal, Adjoining, Allocation, Family, or Partial

Reference

These data were adapted based on a public data set containing information on Ames housing data. Original data from DeCock, Truman State University.

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