filter_by_union | R Documentation |
Select values from a data.frame df matching any column from another data.frame or a selection of row indices. If a second data frame and a selection of rows is provided, values from df matching any value in df2[rows, ] are returned. If only rows indices are provided, rows matching any value in df[rows, ] are returned. NAs are not matched.
This is a wrapper around dplyr::filter with if_any for the case where the value should be in a reference set, with the option to choose whether to use another data frame or a subset of rows as the reference.
filter_by_union(df, df2 = NULL, rows = NULL, by = NULL, verbose = TRUE)
df |
A data.frame from which to select matching rows |
df2 |
Optional, a second data frame |
rows |
Row indices for subsetting, either df2 if present or df |
by |
= columns to select from df2 |
verbose |
Print information about how tables are joined? (Default: TRUE) |
Helen Lindsay
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