相关疑难解决方法(0)

我有一个如下所示的数据集:

• 两轮数据(.t0和.t1)
• 多尺度(this和that)
• 每一等级的几个项目(1,22,22a)
• 几个变量忽略(v2,v3,ignore.t0,ignore.t1,this.t0,this.t1,that.t0,that.t1)

.

dat <- data.frame(id = seq(from=1, to=10, by=1),
                  v2 = rnorm(10),
                  v3 = rnorm(10),
                  ignore.t0 = rnorm(10),
                  this.t0 = rnorm(10),
                  this1.t0 = rnorm(10),
                  this22.t0 = rnorm(10),
                  this22a.t0 = rnorm(10),
                  that.t0 = rnorm(10),
                  that1.t0 = rnorm(10),
                  that22.t0 = rnorm(10),
                  that22a.t0 = rnorm(10),
                  ignore.t1 = rnorm(10),
                  this.t1 …