想用pampe模仿其示例growth数据做合成控制，但是总是报错
time.pretr <- c("1995Q1", "2011Q4")
time.tr <- c("2012Q1", "2021Q2")
treated <- "group1.ave"
econ.integ <- pampe(time.pretr = time.pretr, time.tr = time.tr,
treated = treated, data = p3)
报错如下：
Error in numeric(nbest * nvmax) : invalid 'length' argument
In addition: Warning message:
In leaps.setup(x, y, wt = weights, nbest = nbest, nvmax = nvmax, :
25 linear dependencies found
