Stata 字符串到 date/time 的转换错误

Stata string to date/time conversion error

我正在尝试将字符串变量转换为 Stata 日期格式,但出现奇怪的错误 - Stata 似乎四舍五入到任意秒。

这是我的代码:

gen start_time=clock(v8, "YMDhms")
format start_time %tc

This is what the data looks like

尝试

gen double start_time = clock(v8, "YMDhms")

来自help datetime

Warning: To prevent loss of precision, datetime SIFs must be stored as doubles.