When working with data, it is important to understand the purpose of data analysis. Though the end result of a data analysis process may be a single visualization, there are various stages this analysis goes through. Broadly, there are 2 types of data analysis: Exploratory analysis – Exploratory analysis is often the first step of…
Reporters from the Center for Investigative Reporting sought employee diversity data from 211 technology companies in San Fransisco. A couple of dozen companies shared their data. Here is a visualization of how race and gender diversity for 23 companies in Silicon Valley. The data was analysed using R and the visualization is using d3.js.
Pie charts are the most controversial charts in Data Visualization. With arguments ranging from don’t use pie charts ever to let’s use them when appropriate, there are a lot of opinions on pie charts. Rightly so. Because there is so much we still do not understand about pie charts and let’s face it, there are…
9This series is a collection of small changes in data visualization that make a big difference to the end result. In this article we cover two of the most underrated elements of a graph – Tick marks and Gridlines. What are tick marks and gridlines? Tick marks and gridlines do not represent values themselves. They…
This series is a collection of small changes in data visualization that make a big difference to the end result. When using bar charts, the axis needs to start at zero. Why? Its simpler to understand this if we start with an example. This chart below was used by Twitter in its IPO filing. What do you…
As data viz creators, we are in a constant battle between the multiple ways in which we can present our data to an audience. Which is the best way to present the data? It depends. There is no one best way. But a good practice to follow is to choose one with clarity. Let me…
Dataset The dataset for MakeOverMonday project is hosted on data.world. Original Visualization What works in the original visualization? The visual represents the overtourism and undertoursim magnitudes in a single graph. The terms overtourism and undertourism are explained well. What doesn’t work in the original visualization? Circular shapes are not best suited for comparison and I…