Pittsburgh Bridges
Donated on 7/31/1990
Bridges database that has original and numeric-discretized datasets
Dataset Characteristics
Multivariate
Subject Area
Other
Associated Tasks
Classification
Feature Type
Categorical, Integer
# Instances
108
# Features
12
Dataset Information
Additional Information
There are two versions to the database: - V1 contains the original examples and - V2 contains descriptions after discretizing numeric properties. There are no ``classes'' in the domain. Rather this is a DESIGN domain where 5 properties (design description) need to be predicted based on 7 specification properties.
Has Missing Values?
Yes
Variables Table
| Variable Name | Role | Type | Description | Units | Missing Values |
|---|---|---|---|---|---|
| IDENTIF | ID | Categorical | no | ||
| RIVER | Feature | Categorical | no | ||
| LOCATION | Feature | Integer | yes | ||
| ERECTED | Feature | Categorical | no | ||
| PURPOSE | Feature | Categorical | no | ||
| LENGTH | Feature | Categorical | yes | ||
| LANES | Feature | Integer | yes | ||
| CLEAR-G | Feature | Categorical | yes | ||
| T-OR-D | Feature | Categorical | yes | ||
| MATERIAL | Feature | Categorical | yes |
0 to 10 of 13
Additional Variable Information
The type field state whether a property is continuous/integer (c) or nominal (n). For properties with c,n type, the range of continuous numbers is given first and the possible values of the nominal follow the semi-colon. Name / Type / Possible values / Comments 1. IDENTIF / -- / -- / identifier of the examples 2. RIVER / n / A, M, O / -- 3. LOCATION / n / 1 to 52 / -- 4. ERECTED / c,n / 1818-1986 ; CRAFTS, EMERGING, MATURE, MODERN / -- 5. PURPOSE / n / WALK, AQUEDUCT, RR, HIGHWAY / -- 6. LENGTH / c,n / 804-4558 ; SHORT, MEDIUM, LONG / -- 7. LANES / c,n / 1, 2, 4, 6 ; 1, 2, 4, 6 / -- 8. CLEAR-G / n / N, G / -- 9. T-OR-D / n / THROUGH, DECK / -- 10. MATERIAL / n / WOOD, IRON, STEEL / -- 11. SPAN / n / SHORT, MEDUIM, LONG / -- 12. REL-L / n / S, S-F, F / -- 13. TYPE / n / WOOD, SUSPEN, SIMPLE-T, ARCH, CANTILEV, CONT-T / --
Dataset Files
| File | Size |
|---|---|
| bridges.data.version2 | 6.3 KB |
| bridges.data.version1 | 6 KB |
| bridges.names | 4.3 KB |
| Index | 166 Bytes |
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pip install ucimlrepo
from ucimlrepo import fetch_ucirepo # fetch dataset pittsburgh_bridges = fetch_ucirepo(id=18) # data (as pandas dataframes) X = pittsburgh_bridges.data.features y = pittsburgh_bridges.data.targets # metadata print(pittsburgh_bridges.metadata) # variable information print(pittsburgh_bridges.variables)
Reich, Y. & Fenves, S. (1989). Pittsburgh Bridges [Dataset]. UCI Machine Learning Repository. https://doi.org/10.24432/C5RP5H.
Creators
Yoram Reich
Steven Fenves
DOI
License
This dataset is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license.
This allows for the sharing and adaptation of the datasets for any purpose, provided that the appropriate credit is given.