Generates probability matrix for pseudocounts calculation
pseudocounts计算生成概率矩阵
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Internal function. Generates an amino acid probability matrix which is based on BLOSUM 62, and is used to calculate how many pseudo counts should be added
内部功能。生成氨基酸BLOSUM 62的概率矩阵,用于计算应增加多少伪计数