[统计软件与数据分析] Stata循环语句求助 [推广有奖]

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帅炸苍穹7 发表于 2025-8-23 11:29:40 |AI写论文

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运行下方代码，最后报invalid syntax，求大佬指点
forvalues i = 1/`total_firms' {
* 获取企业信息
use "企业列表.dta", clear
local current_stkcd = Stkcd[`i']
local firm_min_year = min_year[`i']
local firm_windows = possible_windows[`i']

local processed_firms = `processed_firms' + 1

if mod(`processed_firms', 50) == 1 {
      di "处理企业 `current_stkcd' (`processed_firms'/`total_firms')"
}

* 载入该企业的原始数据
use "原始数据.dta", clear
keep if !missing(Stkcd) & !missing(fyear) & !missing(quarter_num) & !missing(Sales)
keep if Stkcd == `current_stkcd'

* 检查数据是否存在
qui count
if r(N) > 0 {
      sort fyear quarter_num

      * 为该企业的每个窗口创建数据
      forvalues w = 1/`firm_windows' {
         * 重新载入企业数据
         use "原始数据.dta", clear
         keep if !missing(Stkcd) & !missing(fyear) & !missing(quarter_num) & !missing(Sales)
         keep if Stkcd == `current_stkcd'
         sort fyear quarter_num

         local window_start_year = `firm_min_year' + `w' - 1
         local window_end_year = `window_start_year' + 4

         keep if fyear >= `window_start_year' & fyear <= `window_end_year'
         qui count
         if r(N) == 20 {
            gen window_num = `w'
            gen window_start_year = `window_start_year'
            gen window_end_year = `window_end_year'
            gen window_id = string(`current_stkcd', "%06.0f") + "_w" + string(`w')

            * 添加到最终结果
            append using "最终结果.dta"
            save "最终结果.dta", replace
         }
      }
}

* 每100个企业显示进度
if mod(`processed_firms', 100) == 0 {
      use "最终结果.dta", clear
      qui count
      di "已处理 `processed_firms' 个企业，累积数据量: " r(N)

      * 每500个企业保存备份
      if mod(`processed_firms', 500) == 0 {
         save "备份_企业`processed_firms'.dta", replace
         di "已保存备份：备份_企业`processed_firms'.dta"
      }
}
}