---
title: "init(dictionaryLiteral:)"
framework: tabulardata
role: symbol
role_heading: Initializer
path: "tabulardata/dataframe/init(dictionaryliteral:)"
---

# init(dictionaryLiteral:)

Creates a data frame from a dictionary literal.

## Declaration

```swift
init(dictionaryLiteral elements: (String, [Any?])...)
```

## Parameters

- `elements`: A comma-separated, or variadic, list of tuples. Each tuple consists of two elements: A string that represents a column’s name An array that represents the elements for that column

## Discussion

Discussion Don’t call this initializer directly. The compiler calls it to create a data frame from a dictionary literal. You create a dictionary literal by enclosing a comma-separated list of key-value pairs in square brackets. For example, this line creates a data frame with two columns and four rows: let dataFrame: DataFrame = ["a": [1, 2, 3, 5], "b": [1.414, 2.718, 3.14, 6.28]] The initializer checks each column’s elements and, if possible, defines the column’s type to one of the following: Bool Int Float Double Date String Data Otherwise, the data frame sets a column’s type to Any. note: Use append(column:) to add a column of a specific type.

## See Also

### Creating a Data Frame

- [init()](tabulardata/dataframe/init().md)
- [init(columns:)](tabulardata/dataframe/init(columns:).md)