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. Author manuscript; available in PMC: 2022 Feb 16.
Published in final edited form as: Stat Methods Med Res. 2019 Jun 7;29(4):1167–1180. doi: 10.1177/0962280219852720

Table 3.

Computation timesa for CMI and mSRI.

mSRI
Sample sizes CMI B = 20 B = 40 B = 60 B = 80 B = 100
n1 = 175; n2 = 450 0.0018 0.0418 0.0860 0.1258 0.1637 0.2153
n1 = 350; n2 = 900 0.0023 0.0467 0.0908 0.1390 0.1833 0.2249

mSRI: multiple stochastic regression imputation; CMI: conditional mean imputation.

a

Times are reported in seconds as the mean across 1000 evaluations using the microbenchmark() function in R. Results are based on application with a 2.9 GHz Intel Core i7 processor and the conditions described in the simulation scenarios of Figure 2.