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- W81140270 abstract "We now assume that we have missing values in the second covariate. The observability of X2 is indicated by a random variable $$O_{2}:begin{cases} & text{1 if};;X_{2} ;;textup obervable & text{0 if};;X_{2} ;;textup unobservable end{cases};;;;2dagger)$$and instead of X2 we observe the random variable $$Z_{2}:=begin{cases} X_{2} ;;textup{if};;O_{2}=1 K+1 ;;textup{if};;O_{2}=0 end{cases}$$with an additional category for missing values. Instead of K + 1 we also use the symbol “?” for this category in the sequel." @default.
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- W81140270 date "1994-01-01" @default.
- W81140270 modified "2023-09-25" @default.
- W81140270 title "Missing Value Mechanisms" @default.
- W81140270 doi "https://doi.org/10.1007/978-1-4612-2650-5_3" @default.
- W81140270 hasPublicationYear "1994" @default.
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