This function calculates the species relative frequency which equals to the numbers of occupied plots partitioned by the total number of plots for each species.
此函数计算的物种的相对频率,它等于由总数图分配占用的图,每个物种的数目。
用法----------Usage----------
freq.calc(matr)
参数----------Arguments----------
参数:matr
The standard species matrix
标准的物种矩阵
Details
详细信息----------Details----------
The input data is a standard species matrix with rows for plots and column for species.
输入的数据是一个标准的物种矩阵与物种的图和列的行。
值----------Value----------
Returns a vector that contains relative frequency for each species included in the input matrix.
返回一个向量,包含相对频率为每个物种包括在输入矩阵。