## House prices

### Description

A dataset containing the prices and other attributes of 128 recent sales of single-family houses in Springfield. The variables are as follows:

### Variables

- price = price at which the house was eventually sold in US dollars ($345,500--$1,056,000)
- squarefeet = floor area in square feet (1450--2590)
- bedrooms = number of bedrooms (2, 3, 4, or 5)
- bathrooms = number of bathrooms (2, 3, or 4)
- brick = whether the construction is primarily brick or not (Yes or No)
- neighborhood = one of the three neighborhoods in Springfield (East, West or North)

## 'Ideal' data for regression

### Description

Simulated data set used to illustrate evaluation of regression residuals.  

### Variables

A data frame with 1000 observations on 4 variables (y, x1, x2, and x3)

## Choice of ketchup brands

Choice behavior for 300 individuals in a panel of households in Springfield, Missouri (USA). The data captures information on 2,798 purchase occasions over a period of around 2 years and includes the follow variables:

* id: Individual identifier
* choice: One of heinz41, heinz32, heinz28, hunts32
* price.x: Price of product x
* disp.x: Is there a display for product x? 
* feat.x: Is there a newspaper feature advertisement for product x?

Source: Jain DC, Vilcassim NJ, Chintagunta PK (1994). "A Random-Coefficients Logit Brand-Choice Model Applied to Panel Data." Journal of Business \& Economic Statistics, 12(3), 317-328.

## Movie theater

### Description

Conjoint data from one respondent. Rankings reflect the evaluation of 18 alternative movie theaters. The 18 profiles are an orthogonal fractional factorial design.

### Format

A data frame with 18 observations on 6 variables.

- Ranking = Respondent ranking of the 18 profiles. 1 is least preferred, 18 is most preferred.
- price = Cost of a ticket
- sight = Line of sight in the theater. A movie theater that is labeled 'Staggered' has seating that is higher in the back of the theater than in the front. In contrast, in a 'Not Staggered' theater all seats are on the same level.
- comfort = Factor with three levels. Large seat with a cupholder, Average seat with a cupholder, and Average seat without a cupholder.
- audio_visual = Factor with three levels. Large screen with digital sound, Large screen with plain sound, and Small screen with plain sound.
- food = Available food options in the theater