Table.fill_empty
fill_emptycolumnsdefaulterror_on_missing_columns
Group: Values
Aliases: fill empty, if_empty
Documentation
Returns a new column where empty Text values have been replaced with the provided default(s).
Arguments
columns: Specifies columns by a name, index or regular expression to match names, or a Vector of these.default: The value to replace empty values with. If this argument is a column, the value fromdefaultat the corresponding position will be used. If this argument isPrevious_Value, the empty values will be replaced with the previous value in the column. Note that the first rows may stay empty if they do not have a previous value to use.error_on_missing_columns: IfTrue, an error is raised if any of the specified columns are not found in the table. IfFalse, missing columns are ignored.
Examples
Fill empty values in two columns with the value "hello".
fill_empty = table.fill_empty ["col0", "col1"] "hello"