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unknown (from Weka repository)

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arff slurped Weka

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# Instances: 20640 / # Attributes: 9
HDF5 (1.4 MB) XML CSV ARFF LibSVM Matlab Octave

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Original Data Format

arff

Name

cal_housing

Version mldata

0

Comment

This is a dataset obtained from the StatLib repository. Here is the included description:

S&P Letters Data

We collected information on the variables using all the block groups in California from the 1990 Cens us. In this sample a block group on average includes 1425.5 individuals living in a geographically co mpact area. Naturally, the geographical area included varies inversely with the population density. W e computed distances among the centroids of each block group as measured in latitude and longitude. W e excluded all the block groups reporting zero entries for the independent and dependent variables. T he final data contained 20,640 observations on 9 variables. The dependent variable is ln(median house value).

                           Bols    tols

INTERCEPT 11.4939 275.7518 MEDIAN INCOME 0.4790 45.7768 MEDIAN INCOME2 -0.0166 -9.4841 MEDIAN INCOME3 -0.0002 -1.9157 ln(MEDIAN AGE) 0.1570 33.6123 ln(TOTAL ROOMS/ POPULATION) -0.8582 -56.1280 ln(BEDROOMS/ POPULATION) 0.8043 38.0685 ln(POPULATION/ HOUSEHOLDS) -0.4077 -20.8762 ln(HOUSEHOLDS) 0.0477 13.0792

The file contains all the the variables. Specifically, it contains median house value, med ian income, housing median age, total rooms, total bedrooms, population, households, latitude, and lo ngitude in that order.

Reference

Pace, R. Kelley and Ronald Barry, Sparse Spatial Autoregressions, Statistics and Probability Letters, 33 (1997) 291-297.

The manuscript describing the data can be found at www.spatial-statistics.com. The data are also available as Matlab files.

Contact kelley@spatial-statistics.com or kelley@pace.am if you have any further questions. Thanks.

Source: collection of regression datasets by Luis Torgo (ltorgo@ncc.up.pt) at http://www.ncc.up.pt/~ltorgo/Regression/DataSets.html Source: StatLib repository. Characteristics: 20460 cases, 9 continuous attributes

Names

longitude,latitude,housingMedianAge,totalRooms,totalBedrooms,population,households,medianIncome,medianHouseValue,

Types

1. numeric
2. numeric
3. numeric
4. numeric
5. numeric
6. numeric
7. numeric
8. numeric
9. numeric

Data (first 10 data points)

long...	lati...	hous...	tota...	tota...	popu...	hous...	medi...	medi...
-122....	37.88	41.0	880.0	129.0	322.0	126.0	8.3252	4526...
-122....	37.86	21.0	7099.0	1106.0	2401.0	1138.0	8.3014	3585...
-122....	37.85	52.0	1467.0	190.0	496.0	177.0	7.2574	3521...
-122....	37.85	52.0	1274.0	235.0	558.0	219.0	5.6431	3413...
-122....	37.85	52.0	1627.0	280.0	565.0	259.0	3.8462	3422...
-122....	37.85	52.0	919.0	213.0	413.0	193.0	4.0368	2697...
-122....	37.84	52.0	2535.0	489.0	1094.0	514.0	3.6591	2992...
-122....	37.84	52.0	3104.0	687.0	1157.0	647.0	3.12	2414...
-122....	37.84	42.0	2555.0	665.0	1206.0	595.0	2.0804	2267...
-122....	37.84	52.0	3549.0	707.0	1551.0	714.0	3.6912	2611...
...	...	...	...	...	...	...	...	...

Description

A jarfile containing 30 regression datasets collected by Luis Torgo (regression-datasets.jar, 10,090,266 Bytes).

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revision 1

by mldata on 2010-11-06 09:57

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