Because describe is a Stata command, it must be typed in lowercase letters. The ordinary rules of capitalization are temporarily suspended in favor of preciseness. We also mix in words printed in italic type, such as "To perform the rank-sum test, type ranksum varname, by(groupvar)". ...
A:当屏幕上显示红色错误提示信息“unrecognizedcommand:xxx”时,意味着命令“xxx” 无法识别。课件中涉及到令,主要包括三类:第一类是stata13自带的,统一存放于 2 “D:\stata13\ado\base”文件夹下,这些命令通常不会出现无法识别的问题;第二类是我自行下 载的外部命令,统一存放于“D:\stata13\ado\plus”文件夹中...