All articles with 'charting principles' Tag
Today lets close some gaps.
Recently I saw this interesting chart on Economist Daily Charts page. This chart is based on World Economic Forum’s survey on how women compare to men in terms of various development parameters. First take a look at the chart prepared by Economist team.
So what are the gaps in this chart?
This chart fails to communicate because,
- All country charts look same, thus making it difficult to spot any deviations.
- We cannot quickly compare one country with another on any particular indicator.
- It does not provide a better context (for eg. how did these countries perform last year?)
But criticizing someone’s work is not awesome. Fixing it and making an even better chart, that has awesome written all over it. So that is what we are going to do. You can see the improved chart above. Click on it to learn how you can create it.Continue »
For every column chart that is done right, there are a dozen that get messed up. That is why lets talk about 5 simple rules for making awesome column charts.
Tip: Same rules apply for bar charts too.Continue »
Pop quiz: What is wrong with above report?
At first glance, it looks alright. But if you observe closely, you realize that it is not telling the entire story. Just looking at regional sales numbers, you have not much clue what is going on with them.
So how to improve it?Continue »
Are you making these 10 rookie mistakes when creating dashboards?
Watch below to video to understand what these mistakes and how to avoid them.
10 Rookie mistakes to avoid when making dashboards [23 mins]Continue »
Recently I saw a big screaming ad that said “the chartbuster rules”. Of course, I know that chartbusters rule. Not just because I was one of them
So I got curious and read on. And I realized the ‘chartbuster’ is actually a car, not some cool, spreadsheet waving, goatee sporting dude like Jon Peltier. What a bummer!
And then to my horror of horrors, I saw the exploding 3d pie chart, with reflection effects & glossy colors. And the sole purpose of the chart is to create an impression that Verna sells better than any car in India.
Today, lets talk about this chart and alternatives for it. Read on.Continue »
Lets say you are responsible for sales of 100s of products (which belong to handful of categories). You are looking at sales of each product in last month & this month. And you want to understand whether sales are improving or declining by category. How would you do it?
Turns out, this is not a difficult problem. In fact, this question is asked every day & answered using Advances vs. Declines chart.
You may have seen this chart in financial newspapers or websites. Shown above, Advances vs. Declines chart tells us how many items have advanced & how many have declined.
Read on to learn how to create this chart using Excel.Continue »
If I need some charting inspiration, I always visit New York Times. Their interactive visualizations are some of the best you can find anywhere. Clear, beautifully crafted and powerful. Long time readers of Chandoo.org knew that I like to learn from visualizations in NY Times & redo them using Excel.
Today let me present you one such chart. This is based on an interactive visualization prepared by NY Times explaining how the tax burden has changed over years for various income groups.
Take a look at tax burden chart – Excel implementation
Read on to learn how to create this chart using Excel.Continue »
There are some charts that look so stunning and yet confusing. You cant make up your mind whether it tells a compelling story or it is just plain wrong.
Today, let me present you one such chart. I call this Pie of a Pie of a Pie chart.Continue »
Today, lets talk about indexing, a technique used to compare changes in values over time.
What is indexing?
Lets say you want to compare prices of Gold & Coffee over last few years. Gold price in 2011 (oct) is $1,655 per ounce. And now (sept 2012) it is $1,744. Like wise, Silver price in 2011 is $32.06 and in 2012 it is $33.61. How do we compare such diverse numbers?
First we need to calculate price of Gold and Silver in 2012 assuming their starting price is 100. This can be done with simple arithmetic.
Now, we can easily compare the prices. Looking at the indexed prices, we can conclude that both Gold & Silver prices have gone up by similar percentage (~5%).Continue »
Is Excel acting slow & taking ages? As part of our Speedy Spreadsheet Week, today lets talk about optimizing & speeding up Excel by formatting & charting better. Use these tips & ideas to super-charge your sluggish workbook.
No matter how much data you got, how many formulas you wrote, the end users seldom see them on your workbook. They see the finalized dashboard, they play with the model, they look at the report. And if you make poor choices, your end users will thing your workbook is slow.
So let me present you 7 charting & formatting tips to optimize & speed up Excel. Read on…,Continue »
Any Tom, Dick and Sally can make things complex. It takes guts and clarity to simplify things. That is why I was pleasantly surprised to see this dashboard prepared by Michigan State. You can see it in the detailed article.
Linda, one of My Excel School students shared this dashboard link with me and asked if I can show how to construct something like this. Here is my version of the dashboard.
Read this post to learn how to construct a similar dashboard on your own. Also, you can download the excel workbook and play with it.Continue »
Today, we will take a detour to world-wide web and learn how we can improve our dashboards, reports, presentations or workbooks by using one of the ideas, called as Golden Triangle.Continue »
Yesterday, we have seen a beautiful example of how showing details (like distribution) on-demand can increase the effectiveness of your reports. Today, we will learn how to do the same in Excel.Continue »
When we have lots of data, we try to summarize it by calculating the average. As they say, averages are mean, they do not give away much.
I want to share with you an interesting example from Amazon.com on how they give more details by combining average with distribution.
As you might know, Amazon shows the rating of each of the products they sell. Customers & users rate the products from 1 to 5 stars. When you visit the product page you will see the average rating. But there is a small down-arrow next to it. When you click on it, Amazon shows you the break-up of that rating so you have a better idea of how the ratings are split.Continue »
As part of Dashboard Week, in this post, we will take a look at Health-care Dashboard prepared and shared by Alberto. He put together an excellent dashboard to visualize hospital performance and understand what is going on. Read this post to understand how this dashboard is made, watch a tutorial video & download example workbook.
Thank you Alberto for sharing the file & helping us learn.Continue »