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This is a core implementation of 'SAS' procedures for linear models  GLM, REG, ANOVA, TTEST, FREQ, and UNIVARIATE. Some R packages provide type II and type III SS. However, the results of nested and complex designs are often different from those of 'SAS.' Different results does not necessarily mean incorrectness. However, many wants the same results to SAS. This package aims to achieve that. Reference: Littell RC, Stroup WW, Freund RJ (2002, ISBN:0471221740).
Package details 


Author  KyunSeop Bae [aut, cre] 
Maintainer  KyunSeop Bae <k@acr.kr> 
License  GPL3 
Version  0.10.5 
URL  https://cran.rproject.org/package=sasLM 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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