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我试图执行与R包CEM
的粗略精确匹配。我观察的数据帧(没有丢失的意见,对colnames见下文),我试图:R package CEM:[.data.frame`(TEi,idt):选择了未定义列的错误
- 进行CEM与抑郁症(depres6mo)作为治疗相匹配,然后
- 进行线性回归匹配的数据集与鸦片剂作为结果(opiates_sum1yr)。
当我运行下面的代码,我得到的错误:
Error in
[.data.frame
(TEi, idt) : undefined columns selected
不过,我仔细检查过所有我回归的变量是在数据帧的变量。任何想法发生了什么?
colnames(nonMissing)
# [1] "depres6mo" "alcohol" "obesity" "ageGrp" "sex" "geoRegion"
# [7] "year" "multi_lami" "multi_fusion" "single_lami" "instr" "htn"
# [13] "chf" "copd" "MI" "diab_u" "diab_c" "drug"
# [19] "tbco" "planType" "opiates_sum1yr" "daily"
mod_match <- cem(treatment = "depres6mo", data = nonMissing, drop = c("opiates_sum1yr", "daily"))
opiatesLin <- att(mod_match, opiates_sum1yr ~ depres6mo + alcohol + obesity + ageGrp + sex + geoRegion + year + multi_lami + multi_fusion + single_lami + instr + htn + chf + copd + MI + diab_u + diab_c + drug + tbco + planType, data = nonMissing)
Error in
[.data.frame
(TEi, idt) : undefined columns selected