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The function transforms a vector of standardized normal variates to their equivalent r-values.
transformZrtoR(zr)
value of point biserial r
A vector of standard normal variates.
Barbara Kitchenham and Lech Madeyski
transformZrtoR(0.4236489) # [1] 0.4 transformZrtoR(c(0.4236489, 0.2027326)) # [1] 0.4 0.2
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