Lipidomics analysis enables the measurement of thousands of lipids in samples. However, sometimes certain lipids are not measured in a particular sample resulting in missing data. In a ...
Missing data are a frequently encountered problem in epidemiologic and clinical research.1, 2 One approach is to include in the analysis only those participants without missing observations (complete ...
If a CLASS or STRATA variable has a missing value, then PROC MULTTEST removes that observation from the analysis. When there are missing values for test variables, the within group-and-stratum sample ...
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