Column
A column in a data frame.
Declaration
struct Column<WrappedElement>Overview
A column is a Collection that contains values of a specific type, including:
Each element in a column is an Optional of the column’s type. Each nil element represents a missing value.
Topics
Creating a Column
init(name:capacity:)init(_:capacity:)init(name:contents:)init(name:contents:)init(_:contents:)init(_:contents:)init(_:)
Creating a Column of the Same Type
Creating a Type-Erased Column
Creating Transformed Columns
Inspecting a Column
Transforming a Column
Adding Elements
Finding an Element Index
Removing an Element
Accessing Elements
Creating a Slice of Unique Elements
Creating a Slice by Masking Elements
Encoding a Column
Decoding a Column
Summarizing a Column
Getting Statistical Values
sum()min()max()mean()mean()standardDeviation(deltaDegreesOfFreedom:)standardDeviation(deltaDegreesOfFreedom:)