Divergence   Times: Non-parametric rate smoothing (NPRS) and penalized   likelihood can be implemented in ape. geiger can   do congruification to stretch a source tree to match a specified standard   tree. treedater implements various clock   models, ways to assess confidence, and detecting outliers.

分化时间：非参数速率平滑（NPRS）和罚分似然函数可以在ape包中运行。geiger能扩展源树

使其与特定标准树一致。。treedater执行各种分子钟模型、方法以估计置信度和探测异常值。