| Abstract: | A SAS program is presented which constructs a composite section of stratigraphic events through principal components analysis. The variables in the analysis are stratigraphic sections and the observational units are range limits of taxa. The program standardizes data in each section, extracts eigenvectors, estimates missing range limits, and computes the composite section from scores of events on the first principal component. Provided is an option of several types of diagnostic plots; these help one to determine conservative range limits or unrealistic estimates of missing values. Inspection of the graphs and eigenvalues allow one to evaluate goodness of fit between the composite and measured data. The program is extended easily to the creation of a rank-order composite. ?? 1985. |
| Genre: | Article |
| ProdID: | 70012324 |
| Citation Author: | Hohn, M. E. |
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| Citation End Page: | 477 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Computers and Geosciences |
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| Citation Number Of Pages: | 7 |
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| Citation Publisher: | Elsevier |
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| Citation Search Results Text: | SAS program for quantitative stratigraphic correlation by principal components; 1985; Article; Journal; Computers and Geosciences; Hohn, M. E. |
| Citation Start Page: | 471 |
| Citation Volume: | 11 |
| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | SAS program for quantitative stratigraphic correlation by principal components; 1985; Article; Journal; Computers and Geosciences; Hohn, M. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1016/0098-3004(85)90028-7 |
| Date Other: | Tue, 1 Jan 1985 00:00 -0600 |
| Publisher: | Elsevier |
