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...

## Point & Figure Chart Explained

Point & Figure chart is used to display the relationship between supply and demand of a particular asset through a series of columns made up of X’s and O’s. Point & Figure Charts are time-independent...

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 Spiral Plot in Data Visualization?

Spiral Plots are ideal for showing large data sets, usually to show trends over a large time period. This makes Spiral Plots great for displaying periodic patterns. This type of visualisation plots time-based data along...

## 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 Population Pyramid in Data Visualization?

A Population Pyramid is a pair of back-to-back Histograms (for each sex) that displays the distribution of a population in all age groups and in both sexes. The X-axis is used to plot population numbers and the Y-axis...

## What is a Pie Chart in Data Visualization?

Extensively used in presentations and offices, Pie Charts help show proportions and percentages between categories, by dividing a circle into proportional segments. Each arc length represents a proportion of each...

## What is a Span Chart in Data Visualization

Span Charts focus the reader on only the extreme values and give no information on the values in between the minimum and maximum values or on averages or data distribution. Also known as a Range Bar/Column Graph...

## 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...

## What Is an ARIMA Model?

In our previous tutorial, we became familiar with the ARMA model. But did you know that we can expand the ARMA model to handle non-stationary data? Well, that’s exactly what we’re going to cover in this post – the...