Generic Initializer

init(column:)

Creates a new column of arrays of strings from a given column whose elements can be converted to an array of strings.

Declaration

init<T>(column: MLDataColumn<T>) where T : MLDataValueConvertible
Available when Element is [String].

Parameters

column

An MLDataColumn of elements convertible to an Array of String.

Discussion

Use this initializer to create a column of arrays of strings from another column. Start by creating a column that is convertible to a column of arrays of strings.

let stringArrayString = "[\"Array\", \"of\", \"strings\", \"1\"]"
let stringArrayString2 = "[\"Array\", \"of\", \"strings\", \"2\"]"
let stringsColumn = MLDataColumn([stringArrayString, stringArrayString2])

print(stringsColumn)
// Prints ["["Array", "of", "strings", "1"]", "["Array", "of", "strings", "2"]"]

Then use init(column:) to convert the column to a column of arrays of strings.

let stringArrayColumn = MLDataColumn<[String]>(column: stringsColumn)
print(stringArrayColumn)
// Prints                 [["Array", "of", "strings", "1"],
//                         ["Array", "of", "strings", "2"]]

See Also

Creating a Data Column by Converting Another Column

func map<T>(to: T.Type) -> MLDataColumn<T>

Creates a new column by converting this column to the given type.

init<T>(column: MLDataColumn<T>)

Creates a new column of integers from a given column whose elements can be converted to integers.

init<T>(column: MLDataColumn<T>)

Creates a new column of arrays of integers from a given column whose elements can be converted to an array of integers.

init<T>(column: MLDataColumn<T>)

Creates a new column of doubles from a given column whose elements can be converted to doubles.

init<T>(column: MLDataColumn<T>)

Creates a new column of arrays of doubles from a given column whose elements can be converted to an array of doubles.

init<T>(column: MLDataColumn<T>)

Creates a new column of strings from a given column whose elements can be converted to strings.

init<T>(column: MLDataColumn<T>)

Creates a new column of machine learning sequences from a given column whose elements can be converted to sequences.

init<T>(column: MLDataColumn<T>)

Creates a new column of machine learning dictionaries from a given column whose elements can be converted to dictionaries.