e1 <- estimate(coef = 1, IC = scale(rnorm(10)), id = 1:10, labels = "a1")
e2 <- estimate(coef = 2, IC = scale(rnorm(10)), id = 1:10, labels = "a2")
# concatenating two summary.estimate objects
c(e1, e2)
# concatenating one summary.estimate object with one numerical variable
ss <- c(summary(e1), niter = 2)
print(ss)
attributes(ss)$extra
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