最佳匹配:错误警告,但输出似乎很好

时间:2015-01-25 16:23:20

标签: r

我通过MatchIt和optmatch包进行了最佳匹配:

library(MatchIt)
library(optmatch)
data(lalonde)

optimal <- matchit(treat ~ age + educ + black, data = lalonde, method = "optimal", ratio = 2)
smry.opti <- summary(optimal, standardize = TRUE)

摘要似乎很好,但我总是收到以下警告信息:

"In fullmatch(d, min.controls = ratio, max.controls = ratio, omit.fraction = (n0 -  :
Without 'data' argument the order of the match is not guaranteed
to be the same as your original data."

我发现了一些帖子,描述了类似的问题。有些人回答说,警告信息应该被忽略: https://lists.gking.harvard.edu/pipermail/matchit/2013-August/000538.html

我应该在代码中更改某些内容,还是可以忽略警告消息?

非常感谢你!

0 个答案:

没有答案