ipums_la_99-small
type: Item
instance of: data set
OpenML dataset ID: 378
dataset version identifier: 1
description: **Author**: IPUMS (ipums@hist.umn.edu) \N**Donor**: Stephen Bay (sbay@ics.uci.edu) \N**Source**: [UCI](https://archive.ics.uci.edu/ml/datasets/IPUMS+Census+Database) - 1999 \N**Please cite**: \N\N**IPUMS Database** \NThis data set contains unweighted PUMS census data from the Los Angeles and Long Beach areas for the years 1970, 1980, and 1990. The coding schemes have been standardized (by the IPUMS project) to be consistent across years. The original source for this data set is the IPUMS project (RugglesSobek, 1997). The IPUMS project is a large collection of federal census data which has standardized coding schemes to make comparisons across time easy.\N\NThe data is an unweighted 1 in 100 sample of responses from the Los Angeles -- Long Beach area for the years 1970, 1980, and 1990. The household and individual records were flattened into a single table and we used all variables that were available for all three years. When there was more than one version of a variable, such as for race, we used the most general. For occupation and industry we used the 1950 basis.\N\NNote that PUMS data is based on cluster samples, i.e. samples are made of households or dwellings from which there may be multiple individuals. Individuals from the same household are no longer independent. Ruggles (1995) considers this issue further and discusses its effect (along with the effects of stratification) on standard errors.\N\NThe variable schltype appears to have different coding values across the years 1970, 1980, and 1990.\N\NThere are two versions of this data set. The small data set contains a 1 in 1000 sample of the Los Angeles and\NLong Beach area. It was formed by sampling from the large data set. The large data set contains a 1 in 100 sample of the Los Angeles and Long Beach area.\N\N**Past Usage** \NS. D. Bay and M. J. Pazzani. (1999) "Detecting Group Differences: Mining Contrast Sets". submitted.\N\N**Copyright Information** \NAll persons are granted a limited license to use an…
author name string: IPUMS
collection date: 1999-11-09
upload date: 2014-09-27T00:00:00Z
full work available at URL: ipums la 99-small.arff
full work available at URL: IPUMS+Census+Database
default target attribute: movedin
OpenML semantic tag: Demographics
OpenML semantic tag: History
citation text: https://www.tandfonline.com/doi/abs/10.1080/01615440.1995.9955312
number of binary features: 9
number of classes: 7
number of features: 61
number of instances: 8844
number of instances with missing values: 8844
number of missing values: 51515
number of numeric features: 0
number of symbolic features: 61
file format: ARFF
MaRDI profile type: Dataset
description: OpenML dataset with id 378