STATA 十八讲１入门
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5.2 函数概览function .............................................................................................................49
5.3 数学函数math functions...................................................................................................50
5.4 字符函数string functions..................................................................................................53
5.5 分类操作by......................................................................................................................54
6 程序 ............................................................................................................................................57
6.1 标准的程序文件格式......................................................................................................57
6.2 创造自己的命令：与STATA互致问候 ...........................................................................57
6.3 暂元Macros: local/global.................................................................................................60
6.4 自带命令参数..................................................................................................................62
6.5 scalar标量 .........................................................................................................................63
6.6 临时变量和临时数据文件:tempvar和tempfile ...............................................................64
6.7 基尼系数命令的创建案例 （选学内容）....................................................................65
7 流程语句 ....................................................................................................................................70
7.1 循环语句:while.................................................................................................................70
7.3 循环语句:forvalues...........................................................................................................71
7.3 循环语句:foreach..............................................................................................................72
7.4 嵌套循环...........................................................................................................................74
7.5 条件语句...........................................................................................................................75
7.6 复习和练习.......................................................................................................................77
8 矩阵 ............................................................................................................................................78
8.1 生成矩阵...........................................................................................................................78
8.2 矩阵四则运算...................................................................................................................79
8.3 矩阵函数...........................................................................................................................81
8.4 随机向量与矩阵代数（选学内容）...............................................错误！未定义书签。
9绘图.............................................................................................................................................85
9.1 绘图命令...........................................................................................................................85
9.2 几种常用的图...................................................................................................................90
9.3 同时做多个图by(varname) ..............................................................................................97
9.4 模板及图文件处理...........................................................................................................99
9.5 附录.................................................................................................................................100
10 随机模拟 .................................................................................................................................101
10.1 伪随机数.......................................................................................................................101
10.2 简单模拟.......................................................................................................................102
10.3 复杂模拟.......................................................................................................................104
10.4 多阶段模拟...................................................................................................................105
10.5 商店案例.......................................................................................................................107
10.6 练习...............................................................................................................................109
10.7 附录...............................................................................................................................110
11 分布函数 ................................................................................................................................116
11.1 二项分布.......................................................................................................................116
11.2 标准正态分布函数.......................................................................................................116
11.3 正态分布函数及其反函数...........................................................................................117
11.4 服从正态分布的随机数...............................................................................................118
11.5 正态分布密度函数.......................................................................................................119
