编制年龄、体重和绝对值、相对频率、性别指数
原文：Create table (in R) with Average,Sd,CI (descriptive analysis) for age and Weight and Absolute,relative frequencies,Cumulative frequencies for gender
原文：Create table (in R) with Average,Sd,CI (descriptive analysis) for age and Weight and Absolute,relative frequencies,Cumulative frequencies for gender
• 如何编制一个表格,说明性分析(Average,Sd,95%的电算平均数)和在......中提出分类变量。