How to Make a Soda Chart
Here's an example of a real-world problem. In a deprived inner city borough of the U.K. with the usual range of problems — drugs, gangs, gun and knife crime, alcohol-fueled…
Variation and Its Discontents
Funnel Plots for Fair Comparisons by Stephen Few and Katherine Rowell Central to quantitative data analysis is an understanding of variation. When we measure multiple occurrences of things to determine…
Give Your Y Axis a Break
I recently got to glimpse what a jet-setter's life might be like when I went to Niagara Falls, Canada, for less than a day (in and out in about eight…
How to Simulate a “Broken axis” Value Axis
This type of chart is often used when a few data points greatly exceed the others. When plotted on a standard chart the other values are dwarfed. The chart actually…
How to Make a Gantt Chart for Repeated Tasks
A Gantt chart for repeated tasks consists of a bar chart series showing the duration of a task, stacked on a transparent bar that pushes the visible bar out to…
How to Make a Gantt Chart
A Gantt chart is a horizontal bar chart often used in project management applications. The attached Excel workbook shows a Gantt chart set up to depict the schedule for a…
How to Make a Table Lens
A table lens display provides a way to view potential correlations between several quantitative variables simultaneously. Step 1. Enter the labels for the data set in column A. See attached…
How to Make a Dot Plot
A Dot Plot is a graphing utility showing the frequency of different pieces of data in a set. It is extremely effective for showing categorical data. Dot plots can be…
How to Make a Histogram
A histogram is a distribution graph that allows you to see how several measurements fall within set ranges, or bins, of the dependent variable. A histogram is usually depicted as…
Editing the Data
Data for example: The values in a chart are linked to the worksheet data from which the chart is created. To make changes to the data plotted in the existing…