pittsburgh {gasper}

Pittsburgh Census Tracts Network.

Description

A dataset representing the graph structure of 402 census tracts of Allegheny County, PA.

Usage

pittsburgh

Format

A list with 4 elements:

• sA A sparse matrix capturing the connections between spatially adjacent census tracts in Allegheny County.

• xy A matrix indicating the spatial location of each census tract.

• f Artificial signal with inhomogeneous smoothness across nodes and two sharp peaks near the center. This signal is formed using a mixture of five Gaussians in the underlying spatial coordinates.

• y Noisy version of the signal.

Source

Data and associated materials were sourced from codes provided by Yu-Xiang Wang (UC Santa Barbara) and are associated with the referenced paper.

References

Wang, Y. X., Sharpnack, J., Smola, A. J., & Tibshirani, R. J. (2016). Trend Filtering on Graphs. Journal of Machine Learning Research, 17, 1-41.