Some Culp Family Members in the Civil War

In the 1860s Gettysburg had a population of around 2,400. The Culps had lived there since 1787, the year Christopher Culp purchased the farm, located on the east end of town, with its western boundry starting at Baltimore St. between Breckenridge and South Streets, going northeast to South Stratton St. and Wall Alley East, then on to East Middle St. between South Stratton and Liberty Streets. The town more or less ended at the farm boundary. Prominent on the farm and southeast of town was Culp\u27s Hill. Five generations of Culps had lived in Gettysburg by the time of the battle. [excerpt

spa: Semi-Supervised Semi-Parametric Graph-Based Estimation in R

In this paper, we present an R package that combines feature-based (X) data and graph-based (G) data for prediction of the response Y . In this particular case, Y is observed for a subset of the observations (labeled) and missing for the remainder (unlabeled). We examine an approach for fitting Y = Xò + f(G) where ò is a coefficient vector and f is a function over the vertices of the graph. The procedure is semi-supervised in nature (trained on the labeled and unlabeled sets), requiring iterative algorithms for fitting this estimate. The package provides several key functions for fitting and evaluating an estimator of this type. The package is illustrated on a text analysis data set, where the observations are text documents (papers), the response is the category of paper (either applied or theoretical statistics), the X information is the name of the journal in which the paper resides, and the graph is a co-citation network, with each vertex an observation and each edge the number of times that the two papers cite a common paper. An application involving classification of protein location using a protein interaction graph and an application involving classification on a manifold with part of the feature data converted to a graph are also presented.