R script to analyze the effects of dsx expression knockdown in <i>D. gazella</i> and <i>O. taurus</i> from <i>Doublesex</i> mediates species-, sex-, environment- and trait-specific exaggeration of size and shape

R code used to analyze the effects of dsx knockdown on fore- and hind tibia shape and size of <i>D. gazella</i> and <i>O. taurus.</i> (Samples stem from Kijimoto et al 2012 PNAS (<i>O. taurus</i>) and Casasa et al 2020 Nature Ecol &amp; Evol (<i>D. gazella</i>)).