Restate a length-weight pair on a total-length basis

Given W = a * L_type^b and L_type ~= ratio * TL, substitution gives W = a * ratio^b * TL^b. So b is unchanged and only a is rescaled.

Usage

convert_lw_to_tl(lw, conversions)

Arguments

lw

A tibble of length-weight rows carrying species, Type, a and b.

conversions

Output of get_length_conversions().

Value

lw with a restated on a TL basis and Type set to "TL". Rows with no usable conversion are dropped.