Estimator for Simpson's index odered by a factorial variable f.
Simpson指数估计的odered的因子变量f。
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Estimation function for Simpson's index. Internal use in sbdiv for methods rpht, tsht, asht. Sums up species counts in each columns for every treatment group and estimates Simpson's index on the resulting vectors of summed up species counts.
Simpson指数的计算函数。内部使用的sbdiv方法的rpht,tsht,asht。总结了在各治疗组每列的物种数和Simpson指数上得到的向量,总结出来的物种数估计。
用法----------Usage----------
estSimpsonf(X, f)
参数----------Arguments----------
参数:X
n times p matrix containing species in p columns and replicates in nrows.
n倍pp列和重复n行矩阵物质。
参数:f
Factor variable comtaining treatment groups. Must be of length: replicates times treatment groups.
因素的变量comtaining治疗组。长度必须为:复制次治疗组。
值----------Value----------
参数: estimate
Estimated Simpson index for treatment groups
估计Simpson指数治疗组
参数: varest
Estimated variance of Simpson's index for treatment groups
Simpson指数的估计方差为治疗组