All articles with 'Charts and Graphs' Tag

Its contest time again! Put on your creative hats & bring your Excel skills to the game.

Analyze more than 1900 survey responses & present your results in a stunning fashion, and you could walk away with an XBOX 360 + Kinect Sports Bundle (valued at $299).

Sounds interesting? Read on.

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.

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.

Two weeks back I ran a poll asking you to tell me what is the last visible cell in your excel window. It was a casual poll. So I didn’t expect a lot of responses. But, boy I was wrong! 295 of you have responded at last count. This is so much more than what I expected.

As I said, the purpose of this poll is to make a visualization out of the poll responses. In this post you can see the chart(s) I made from this data & learn more.

Have you ever wondered how you can hide that 0 (zero) at axis bottom? Like shown beside. You can use custom cell formatting codes (or custom number formatting codes) to do just that. Just go to axis formatting and from the number tab set the axis number format to something like #,##0;-#,##0;; Read the rest of the post to learn more.

This week’s poll is very simple. What is the the most embarrassing charting mistake your made?

For me it has to be that one time when I made a sports dashboard using excel. I have adjusted the axis scale of a bar chart so that my favorite cricket player (Sachin Tendulkar, who else?)’s records are emphasized. In a matter of minutes I have received several comments from all over world pointing out the mistake. Even though, the intention was to highlight the achievements of master blaster, the axis adjustment was obviously a mistake.

Aravind (@arvindnatarajan on twitter) who works at Zoho emailed me earlier today and asked if Zoho Reports – Online Reporting and Business Intelligence Service, can sponsor our visualization challenge #2.

Two charting principles we hear all the time are,

• Sort your data in a meaningful order before plotting it.
• Show only relevant information, not everything – because un-necessary information clutters the chart.

Today we will learn a dynamic charting technique that will mix these two ideas in a useful way. I call this a Top X chart.

Let us say you have built a nice chart showing your sales and profits for the top 5 products (learn how to highlight top 5 products in a list), with products on X axis. Suddenly your boss wants to switch the rows to columns (or transpose the chart) so that she can see metric level grouping instead of product level grouping. No need to freak out and rush to Espresso machine, You can do it very easily with Excel Charting features.

In today’s quick tip you will learn how to swap chart rows and columns in excel.

In his latest book, Now You See It, on pages 165 and 166 of the book, Stephen Few discusses how grouping related time intervals can facilitate analysis of data. As an illustration he explains that when viewing data of daily website visits, it helps in separating weekdays and weekends to differentiate expected traffic during these periods. The use of this technique would make it easier for the analyst to identify any anomalous movement in ether the weekend or the week day.

Fortunately excel combo charts can help you do that. In this guest post, Paresh explains to us how to do this.

The worldwide web is a wonderful place. I am constantly amazed by the simple yet very effective stuff we can learn by just reading. Today I want to share with you two very great pieces of advice: Seth Godin’s 4 Simple Principles for making effective graphs: Seth Godin is probably one of the most remarkable, […]

Two most commonly asked or searched queries when it comes to charting are,

• How to combine two chart types in one chart, like a line chart combined with bar chart?
• How to add a secondary axis to the chart so that one or more data series are plotted on the secondary axis?

Watch this video tutorial to learn how to do both in less than 15 seconds.

Watch it on youtube: Creating combination charts and adding secondary axis – video tutorial

When you are making a chart next time, spend just 5 minutes (or even less) on the formatting and give more time (may be 20 minutes) to think about the story.

As mentioned earlier, I have met Garr Reynolds of presentation zen fame in Malmo, Sweden last Friday. What was to be a quick 15 minute interview became a 2 hour lengthy discussion on presentations, charting, excel, data, Japanese culture and of course our pointy haired dilbert blog. Read the entire interview in the post.

A very warm, cuddly and hugsy welcome to Pointy Haired Dilbert. I am happy to know that you are reading this. This is a blog about YOU becoming successful. It is all about understanding your data, making your charts better and improving the way you work using excel. Read this post to know more about this site.