As known as a Sunburst Chart, Ring Chart, Multi-level Pie Chart, Belt Chart, Radial Treemap. This type of visualisation shows hierarchy through a series of rings, that are sliced for each category node. Each...

## What is Radar Chart in Data Visualization

Radar Charts are a way of comparing multiple quantitative variables. This makes them useful for seeing which variables have similar values or if there are any outliers amongst each variable. Radar Charts are also useful...

Hi, I am Ned Krastev – co-founder of 365 Data Science, and I am happy to announce the latest release in the 365 Data Science Program – the Introduction to Business Analytics course. In this post, I’ll briefly...

## What is a Stem and Leaf Plot?

Stem & Leaf Plots are a way of organising data via their place value to show the distribution of data. Place values are shown ascending downwards on a “stem” column, typically but not always in tens...

## What is Stacked Area Graph in Data Visualization

Stacked Area Graphs work in the same way as simple Area Graphs do, except for the use of multiple data series that start each point from the point left by the previous data series. The entire graph represents the total...

## What is Sankey Diagram in Data Visualization

Sankey Diagrams display flows and their quantities in proportion to one another. The width of the arrows or lines are used to show their magnitudes, so the bigger the arrow, the larger the quantity of flow. Flow arrows...

## What is Radar Chart in Data Visualization

Radar Charts are a way of comparing multiple quantitative variables. This makes them useful for seeing which variables have similar values or if there are any outliers amongst each variable. Radar Charts are also useful...

## What is a Stacked Bar Graph?

Unlike a Multi-set Bar Graph which displays their bars side-by-side, Stacked Bar Graphs segment their bars. Stacked Bar Graphs are used to show how a larger category is divided into smaller categories and what the...

## What is a Scatterplot in Data Visualization

Scatterplots use a collection of points placed using Cartesian Coordinates to display values from two variables. By displaying a variable in each axis, you can detect if a relationship or correlation between the two...

## What is a Proportional Area Chart?

Proportional Area Charts usually use squares or circles. However, any shape can be used, so long as you use the shape’s area to represent the data. A common technical error with area charts is to use one length to...