Sperm quality comparisons

This R script contains the code to investigate whether sperm quality varies with sperm length (long or short), and whether left testes mass is related to sperm length. Code is also provided for additional studies investigating whether sperm length is related to seminal glomera mass and copulation rate (not that these final two studies did not use the males from the sperm competition experiments. The results of all statistical tests were used to make tables S1 - S4 in electronic supplementary material 2.

本R脚本（R script）包含以下探究代码：一是探究精子质量（sperm quality）是否随精子长度（sperm length，长或短）发生变化，二是探究左侧睾丸质量（left testes mass）是否与精子长度相关。此外，脚本还提供了额外研究的相关代码，用于探究精子长度是否与精团（seminal glomera）质量及交配率（copulation rate）相关。需说明的是，后两项研究并未采用精子竞争实验（sperm competition experiments）中的雄性个体。所有统计检验的结果均用于制作电子补充材料2（electronic supplementary material 2）中的表S1至S4。