DataFrame< K, V > Class Template Reference

An abstract data frame. More...

#include <DataFrame.hh>

Public Member Functions
bool	Has (const K &_key) const
	Check if column is present. More...
const std::vector< K >	Keys () const
	Retrieve all keys. More...
V &	operator[] (const K &_key)
	Fetch mutable reference to column. More...
const V &	operator[] (const K &_key) const
	Fetch immutable reference to column. More...

Detailed Description

template<typename K, typename V>
class gz::common::DataFrame< K, V >

An abstract data frame.

Template Parameters

K	Column key type
V	Column value type

Member Function Documentation

Has()

bool Has ( const K &  _key ) const

inline

Check if column is present.

Parameters

[in]

_key

Key to column to look up.

Returns

whether the given column is present in the data frame.

References unordered_map< K, T >::count().

Keys()

const std::vector<K> Keys ( ) const

inline

Retrieve all keys.

Returns

A vector with keys

References vector< T >::push_back().

operator[]() [1/2]

V& operator[] ( const K &  _key )

inline

Fetch mutable reference to column.

Parameters

[in]

_key

Key to column to look up.

Returns

Mutable reference to column in the data frame.

operator[]() [2/2]

const V& operator[] ( const K &  _key ) const

inline

Fetch immutable reference to column.

Parameters

[in]

_key

Key to column to look up.

Returns

Immutable reference to column in the data frame.

References unordered_map< K, T >::at().

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The documentation for this class was generated from the following file:

• DataFrame.hh