All articles with 'visualization principles' Tag
We, analysts take pride in the fact that we tell stories. But what if you have a boss, client or colleague who wouldn’t buy the story?
This is a problem we face often. Let’s say your boss has stubborn opinion about something, like more advertising leads to more sales. You know the data doesn’t support this theory. But how do you change your boss’ mind?
Here is an interesting way, showcased in NY Times recently.Continue »
In the 32nd session of Chandoo.org podcast, let’s make legendary column charts.
What is in this session?
Column charts are everywhere. As analysts, we are expected to create flawless, strikingly beautiful & insightful column charts all the time. Do you know the simple rules that can help you create legendary column charts?
That is our topic for this podcast session.
In this podcast, you will learn
- Few personal announcements
- Rule 0: Start at zero
- Rule 1: Sort the chart
- Rule 2: Slap a title on it
- Rule 3: Axis + grid-lines vs. Lables
- Rule 4: Moderate formatting
Situation: Our commissions are growing way faster than revenues
Let’s say you are looking revenues & sales commissions of your company for last few years. The data looks like this:
And you want to highlight the fact that commissions are growing faster than revenues.
So you plot YoY growth rates for revenues & commissions.
Problem: The chart of YoY growth rates is not convincing
Take a look at the chart. It doesn’t convey the message that we want. At best it says “revenue growth is less than commission growth”
How to convey the message “Commission growth is a problem for us”?Continue »
In the 13th session of Chandoo.org podcast, lets turn our attention to on-going FIFA worldcup and ask an important question.
What is in this session?
A week ago, we discussed “Has it been a late goal FIFA worldcup?” and used various charts & analysis techniques to answer the question. In podcast, lets tackle the same problem, understand various approaches to answer questions like these & shares some lessons for all the analysts.
A good dashboard must show important information at a glance and provide option to drill down for details.
Showing Top 10 (or bottom 10) lists in a dashboard is a good way to achieve this (see aside). Today we will learn an interesting technique to do this in Excel.Continue »
We make charts with date axis all the time. So, today we will learn how to set up axis settings in Excel so that Months & Years are shown neatly structured without cluttering your chart. See the example next to understand.Continue »
First some personal matters. Today I am celebrating my 28th birthday. The last one year has been very good for us. We have been very busy parenting 2 hilarious and naughty twins, I moved back to India, quit my job and started a company. My business became a mild success crossing $100k revenues in 12 […]Continue »
Dashboards can be overwhelming with lots of details and context. A simple way to drag user’s attention to important stuff in the dashboard is to use alerts. See this example to understand what alerts mean. How to display alerts in Excel Dashboards? The easiest way to display alerts is to use Excel 2007’s Conditional Formatting […]Continue »
In this article we will learn what a Panel Chart is and how you can construct a panel chart in Excel.
What is a Panel Chart?
A panel chart is a set of similar charts neatly aligned in panels to help us understand some data which has multiple variables in it. Panel charts are also called by names “trellis displays” or “small multiples”. They are an effective way to display multi-variable data.
Here is an example panel chart showing the total defects per module over the last 4 weeks.Continue »
In a follow up to last week’s how to visualize survey data in excel, we will explore how you can create an incell dot plot panel chart. Please follow the links in the article to get more commentary and insights from established persona in the visualization world (including Stephen Few, Naomi, Jon etc.)Continue »
We all know that legend can be added to a chart to provide useful information, color codes etc.
Today we will learn how to make the chart legends smarter so that they provide more meaning and context to the chart, like this:
This type of legend can be more useful than a plain legend as this provides more useful information without taking up too much space.Continue »
Last week I have reviewed Google’s flu trends chart and told you that is it is very well made. Out of curiosity I made a similar chart in Excel. In this post, I am going to share the experience and results with you. Interested? Read on…Continue »
Ever since I was a child, I was fascinated by Paris (and Eiffel Tower). Recently, I had opportunity to visit Paris, albeit for just a few hours (I had a 12 hour lay-over in Paris between flights). I went to see the Eiffel Tower and it looked just as beautiful and majestic as it did in my imaginations.
During my visit to Eiffel tower, I took the stairs to 2nd floor and along the way they have a handful of visualizations explaining the tower. I found them quite interesting and well made. Here, I have listed down 4 simple, yet very effective visualization lessons for all of us.Continue »
We talk alot about making better charts and perils of bad charts here.
I want to know what you usually do when a co-worker or boss makes an ugly chart?
- You tell them the chart sucks
- You gently point out the mistakes of their chart and tell them some nicer and cooler ways to tackle it
- You stay calm and send them an e-mail later (may be with a link to PHD chart pages or something like that)
- You don’t care (and may be continue doodling)
- Any other
Vote your option using comments.Continue »
The other day while doing aimless roaming on the dotcom alley, I have seen some cool optical illusions. There are so many valuable lessons optical illusions can teach us – chart makers. Don’t believe me? Look at the bubble chart illusion on the left and tell me which orange circle is bigger? What is your answer? Right or left. Well, my friend, the answer is both are of same size. Read the rest of this post to find some cool optical illusions and what they can teach us – chart makers.Continue »