Stochastic imputation would then proceed in a number of steps.
Since more than 90% of FM charts had some missing, imputation was necessary before proceeding with further statistical analysis.
To maintain the power, we decided to proceed with the multiple imputation sample.
From this table we can see there were no major changes in parameters, which allows us to proceed with the multiple imputation model.
To obtain the posterior π(ω|Data), where ω = (β, h, σ0, σ1), one proceeds iteratively by generating right censored imputations of event times T from the predictive distribution π(T| ω, Data), and calculates π(ω| T, Data), from the augmented data, see Tanner [ 26].
A hybrid of predictive mean matching, referred to as posterior predictive mean matching, proceeds first by obtaining parameter draws using classical multiple imputation approaches.
In this manuscript we develop and evaluate a set of imputation strategies for dealing with nongeocoded addresses so that analysis can proceed using all case records.
We therefore proceeded to more detailed analyses in each region, after imputation of genotypes where appropriate in the data sets with best coverage of each region (UK1, Scotland1 and VQ58).
For imputation with the CTS data, we use the NHS prediction equations in (1 ) and (2 ) and proceed as in steps 5 and 6 to obtain overall estimates of α and β for CTS as given in Table 4.
