Expand records

Expand single records into multiple records by splitting strings in a named column at the chosen separator. For example, if a for a record the column synonyms = c("glucose,dextrose") then by splitting at the comma results in two records, one for glucose and one for dextrose with identical values (apart from the column being split). The original record is removed.

Usage

split_records(column_name, separator, clean = TRUE, ...)

Arguments

column_name

(character) The column name of the annotation_source to split intomultiple records.

separator

(character) The substring used to split the values in column_name into multiple records.

clean

(logical) Remove the original column. If FALSE the original column will be retained in the final output with .original appended to the column name. The default is TRUE.

...

Additional slots and values passed to struct_class.

Value

A split_records 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:

• tidytext

Inheritance

A split_records object inherits the following struct classes:

[split_records] -> [model] -> [struct_class]

References

Silge J, Robinson D (2016). "tidytext: Text Mining and Analysis Using Tidy Data Principles in R." JOSS, 1(3). doi:10.21105/joss.00037 https://doi.org/10.21105/joss.00037, http://dx.doi.org/10.21105/joss.00037.

Examples

M <- split_records(
        column_name = character(0),
        separator = ",",
        clean = FALSE)