

HI Nicole,
 
Homework? No, it is a part of analysis for my paper. Any idea?
 
ya
 





At 2012-03-30 23:32:21,"Nicole Marie Ford" <nmford@uwm.edu> wrote:
>ya,
>
>is this homework?
>
>
>----- Original Message -----
>From: "ya" <xinxi813@163.com>
>To: r-help@r-project.org
>Sent: Friday, March 30, 2012 9:04:59 AM
>Subject: [R] pooling in MICE
>
>Hi everyone,
>
>Does anyone here has experience using MICE to impute missing value? I am 
>having problem to pool the imputed dataset for a MANOVA test, could you 
>give me some advice please?
>Here is my code:
> > library(mice)
> > 
>grd3dat=subset(paper2,Control==1&Grade_1==3,select=c(Boy,BVCategoryT1,reclassify,meanseap_1,meandep_1,meananx_1,meanper_1,meanrelma_1,meandiff_1,meanascon_1,meanclasc_1,meanschoc_1))
> > grd3imp=mice(grd3dat,m=20,seed=123,print=F)
> > grd3mod=with(grd3imp,lm(cbind(meanseap_1,meandep_1,meananx_1)~Boy*BVCategoryT1))
> > summary(pool(grd3mod))
>Error in table[, 8] <- x$nmis[names(x$qbar)] :
>   replacement has length zero
>
> > pool(grd3mod)
>Call: pool(object = grd3mod)
>Pooled coefficients:
>  [1]  2.51538922  0.08041626 -0.02266421  0.33964482 -0.38691307 -0.28778570 -0.10405965  0.12206124  0.86739342 -0.17195284  0.04784570 -0.38342776
>[13] -0.07785758  0.27914375  0.09205530 -0.09185746  2.04934495 -0.34833583 -0.02972867 -0.65564544 -0.33033151  0.29788500  0.11309193  0.32081963
>Fraction of information about the coefficients missing due to nonresponse:
>  [1] 0.2113750 0.2137368 0.3849378 0.1885110 0.2056638 0.4089043 0.1960244 0.1116587 0.2015711 0.1960397 0.3745362 0.2108851 0.2545268 0.4241958 0.2146440
>[16] 0.2520252 0.2380274 0.2131245 0.3006583 0.2464491 0.2915607 0.2173454 0.1970864 0.1422042
>Thank you very much.
>
>YA
>
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