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Add columns

Source: R/add_columns_class.R
add_columns.Rd

A wrapper around dplyr::left_join. Adds columns to an annotation table by performing a left-join with an input data.frame (annotations on the left of the join).

Usage

add_columns(new_columns, by, ...)

Arguments

new_columns

(data.frame, annotation_database) A data.frame to be left-joined to the annotation table. Can also be an annotation_database.

by

(character) A (named) character vector of column names to join by e.g. c("A" = "B") (see dplyr::left_join for details).

...

Additional slots and values passed to struct_class.

Value

A add_columns object with the following output slots:

updated(annotation_source) The updated annotations as an annotation_source object.

Details

This object makes use of functionality from the following packages:

  • dplyr

Inheritance

A add_columns object inherits the following struct classes:

add_columns() ⭢ model() ⭢ struct_class()

References

Wickham H, François R, Henry L, Müller K, Vaughan D (2023). dplyr: A Grammar of Data Manipulation. R package version 1.1.3, https://CRAN.R-project.org/package=dplyr.

See also

dplyr::left_join()

Examples

M = add_columns(
      new_columns = data.frame(id=NA),
      by = "id")