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Ages of Alewife (Alosa pseudoharengus) assessed from otoliths and scales.
A data frame of 104 observations on the following 2 variables:
Age assigned from examination of otoliths
Age assigned from examination of scales
Age Comparison
Age Precision
Age Bias
Ageing Error
data(AlewifeLH) str(AlewifeLH) head(AlewifeLH) plot(scales~otoliths,data=AlewifeLH) xtabs(~otoliths+scales,data=AlewifeLH)
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