Record Display for the EPA National Library Catalog


Main Title UNIPALS: Software for Principal Components Analysis and Partial Least Squares Regression.
Author Glen, W. G. ; Sarker, M. ; Dunn, W. J. ; Scott, D. R. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;Illinois Univ. at Chicago.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-89/497;
Stock Number PB91-146365
Additional Subjects Multivariate analysis ; Data analysis ; Chemical analysis ; Computer applications ; Computer software ; Least squares method ; Regression analysis ; Algorithms ; Interactive systems ; Data processing ; Preprocessing ; Reprints ; Principal components analysis ; Partial least squares ; UNIPALS computer program
Library Call Number Additional Info Location Last
NTIS  PB91-146365 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 22p
Software for the analysis of multivariate chemical data by principal components and partial least squares methods is included on disk. The methods extract latent variables from the chemical data with the UNIversal PArtial Lease Squares (UNIPALS) algorithm. The software is written in BASIC, provides a number of editing and preprocessing options and is interactive. The method provided here is limited to the analysis of 20 x 20 matrices. It contains options for the graphical display of scores and loadings for interpretation of the results of analyses. (Copyright (c) 1990 Pergamon Press plc.)