Description Usage Arguments Value Examples
This function takes the outputted df from prods and generates the lavaan script necessary to fit a RFA model of uniform and non-uniform DIF
1 | covfilters(df, covname, levs)
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df |
input data frame consisting of factor indicators and DIF covariate |
covname |
input character vector name for DIF covariate in df |
levs |
range of covariate levels for DIF examination (returned by covlevs) |
a list of filtered data frames consiting of the indicators of the factor (one per level of levs)
1 | filter.list <- covfilters(df, covname = "pers.lad", levs)
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