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LW1949 1.1.0

• Constrained corrected values for observed effects of 0% to a maximum of 10.5% and those for observed effects of 100% to a minimum of 89.5% in keeping with the intended application of Litchfield and Wilcoxon’s (1949) Table 1.
• Incorporated rounding in keeping with the true approach taken by Litchfield and Wilcoxon (1949)
  • fitlinear() - default setting for argument constr set to c(0.0005, 0.9995).
  • assessfit() - exclude records with expected effects < 0.005% or > 99.995%.
  • correctval() - apply corrected values to expected effects < 0.5% or > 99.5%.
  • LWestimate() - calculate Nprime as number of observations between ED15.5% and ED84.5%.
• Introduced greater flexibility in plotting functions.
  • plotDELP() - added argument grid.
  • LWnomo1() - added argument ....
• Extended predLines() and predLinesLP() to cover entire x-range.
• Added citation (Adams et al. 2016).

LW1949 1.0.0

• Package first submitted to CRAN

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.