scholarly journals Spatial factor analysis: a technique to assess the spatial relationships of multivariate data

1990 ◽  
Author(s):  
E Grunsky
Keyword(s):  
Factor Analysis ◽  
Multivariate Data ◽  
Spatial Relationships ◽  
Spatial Factor

scholarly journals A joint spatial factor analysis model to accommodate data from misaligned areal units with application to Louisiana social vulnerability

Biostatistics ◽  
2018 ◽  
Vol 20 (3) ◽  
pp. 468-484 ◽  
Author(s):  
Rachel C Nethery ◽  
Dale P Sandler ◽  
Shanshan Zhao ◽  
Lawrence S Engel ◽  
Richard K Kwok
Keyword(s):  
Climate Change ◽  
Factor Analysis ◽  
Spatial Data ◽  
Social Vulnerability ◽  
Social Characteristics ◽  
Analysis Model ◽  
Latent Factors ◽  
Factor Analysis Model ◽  
Spatial Factor ◽  
Misaligned Data

SummaryWith the threat of climate change looming, the public health community has an interest in identifying communities at the highest risk of devastation based not only on geographic features but also on social characteristics. Indices of community social vulnerability can be created by applying a spatial factor analysis to a set of relevant social variables measured for each community; however, current spatial factor analysis methodology is ill-equipped to handle spatially misaligned data. We introduce a joint spatial factor analysis model that can accommodate spatial data from two distinct partitions of a geographic space and identify a common set of latent factors underlying them. By defining the latent factors over the intersection of the two partitions, the model minimizes loss of information. Using simulated data constructed to mimic the spatial structure of our real data, we confirm the reliability of the model and demonstrate its superiority over competing ad hoc methods for dealing with misaligned data in spatial factor analysis. Finally, we construct an index of community social vulnerability for each census tract in Louisiana, a state prone to environmental disasters, which could be exacerbated by climate change, by applying the joint spatial factor analysis model to a set of misaligned social indicator data from the state. To demonstrate the utility of this index, we integrate it with Louisiana flood insurance claims data to identify communities that may be at particularly high risk during natural disasters, based on both social and geographic features.

scholarly journals Using spatial factor analysis to measure human development

2018 ◽  
Vol 132 ◽  
pp. 130-149 ◽  
Author(s):  
Qihua Qiu ◽  
Jaesang Sung ◽  
Will Davis ◽  
Rusty Tchernis
Keyword(s):  
Factor Analysis ◽  
Human Development ◽  
Spatial Factor
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