search for: erorpr

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2012 Jul 05
0
Confused about multiple imputation with rms or Hmisc packages
...x codes for events as a binary variable. #The CPH model I would like to fit, using Ograde_dx as the variable for overall grade at #diagnosis, ord_nodes as an ordinal variable for the # lymph nodes involved. obj=with(mydata, Surv(recurfree_survival_fromsx,rf_obs_sx)) mod=cph(obj~ord_nodes+Ograde_dx+ERorPR+HER2_Sum,data=mydata,x=T,y=T) #Impute missing data mydata.transcan=transcan(~Ograde_dx+tumorsize+ord_nodes+simp_stage_path+afam+ Menopause+Age,imputed=T,n.impute=10) summary(mydata.transcan) The issues I have are: a) In your opinion(s), should I even be imputing this data? Is it appropriate...