# Numerical with Frequency

The Numerical with Frequency strategy allows visualizing triplets as coordinates (*x*, *y*) with an associated numeric frequency.

## Intent

It attempts to answer the following sensemaking task:

*What is the relationship between three numeric variables?*

## Presentation metaphor

Data, together with *Numerical*.

## Context meta-model

The context meta-model of Numerical with Frequency contains a single class, `Target`

, with three numeric attributes: `x`

, `y`

, and `freq`

.

## Visualisation variants

**Bubble Chart**displays coordinates as bubbles with a size proportional to the frequency freq.

## Properties

`title`

: string [1..1]. Title of the visualisation.`X_label`

: string [0..1]. Label for the x axis.`Y_label`

: string [0..1]. Label for the y axis.