reshape long E_Score, i(RIC) j(year)
(j = 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
> 2020 2021 2022)
variable id does not uniquely identify the observations
Your data are currently wide. You are performing a reshape long. You specified i(RIC) and j(year).
In the current wide form, variable RIC should uniquely identify the observations. Remember this
picture:
long wide
+---------------+ +------------------+
| i j a b | | i a1 a2 b1 b2 |
|---------------| <--- reshape ---> |------------------|
| 1 1 1 2 | | 1 1 3 2 4 |
| 1 2 3 4 | | 2 5 7 6 8 |
| 2 1 5 6 | +------------------+
| 2 2 7 8 |
+---------------+
Type reshape error for a list of the problem observations.r(9);
这怎么处理呢?