【文件属性】:
文件名称:条件语句-probability statistics and random processes for electrical engineering 3ed
文件大小:2.22MB
文件格式:PDF
更新时间:2021-06-07 19:03:38
stata
7.5 条件语句
7.5.1 简单的条件语句
如果是国产车,则价格降 100 元,如果是进口车,则价格提升 200 元。
sysuse auto, clear
gen p1=price-100 if forein==0
replace p1=price+100 if foreign==1
gen p2=cond(foreign==0,(price-100),(price+100))
前两行与该行等价,到当条件满足时,执行紧跟条件后面的内容,否则执行第二个内容。
list p* forei
任务 7.9:判断奇偶数。
*============================begin================================
capture program drop odd
program odd
args num
if int(`num’ /2)!=(`num’-1)/2 { //如(8-1)/2 取整为 3,不等,跳至 else
display “num is NOT an odd number”
}
else {
display “num IS an odd number”
网友评论
相关文章
- Probability, Statistics, and Random Processes For Electrical Engineering, 3ed
- 数据重整-probability statistics and random processes for electrical engineering 3ed
- 矩阵函数-probability statistics and random processes for electrical engineering 3ed
- 嵌套循环-probability statistics and random processes for electrical engineering 3ed