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Fix description and K==4 case #42

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Fix description and K==4 case #42

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4 changes: 2 additions & 2 deletions R/mu_from_ES.R
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
#' Convenience function to calculate the means for between designs with one factor (One-Way ANOVA). Can be used to determine the means that should yield a specified effect sizes (expressed in Cohen's f).
#' Convenience function to calculate the means for between designs with one factor (One-Way ANOVA). Can be used to determine the means that should yield a specified effect sizes (expressed in Eta-squared).
#' @param K Number of groups (2, 3, or 4)
#' @param ES Effect size (eta-squared)
#' @return Returns vector of means
Expand Down Expand Up @@ -33,7 +33,7 @@ mu_from_ES <- function(K, ES){ # provides the vector of population means for a g
}
if(K == 4){
a <- sqrt(f2)
muvec <- c(-a, -a, a, a)
muvec <- c(-2*a, -a, a, 2*a)
} # note: function gives error when K not 2,3,4. But we don't need other K.
return(muvec)
}