DeltaMaster clicks! 08/2015

Early warnings with clever KPIs

Greetings, fellow data analysts! Entrepreneurs and managers have hoped to gain competitive advantages from sophisticated analytic technologies long before Big Data started making headlines in daily newspapers. Our experience from countless analysis projects, however, shows that all-knowing algorithms don’t necessarily reveal the best tips on what work is yet to be done. Oftentimes, the most valuable insights come from well-thought-out KPIs that are analyzed with robust methods. The secret here is asking the right questions and figuring out how to Read More …

DeltaMaster clicks! 07/2015

Tips and tricks for cumulated values

Greetings, fellow data analysts! The shortest route between Boston and Philadelphia is 490 kilometers. That is about the distance of the longest stage ever at the Tour de France – and only one of fifteen at the 1919 tour. Like always, there was a proud winner at the end of the day’s race. Someone else, however, wore the famous yellow jersey (Maillot Jaune). Outstanding performance during one stage of a race is one thing; however, it’s the overall classification that Read More …

DeltaMaster clicks! 12/2012

Small Multiples with dynamic comparisons

Greetings, fellow data analysts! To be an informative speaker or writer, you should use concrete words – and, ironically, that’s often easier when you think abstractly. Abstraction doesn’t mean omitting things that aren’t important, but rather finding things in common. In reporting, for example, you rarely deal with just any old customers, product groups, or business divisions. You select them using set criteria based on a rule – customers with the highest revenues, product groups with the largest inventory, or Read More …

DeltaMaster clicks! 06/2008

Absolute, relative and weighted variance

Greetings, fellow data analysts! Consumers who are conscious about their health or figure religiously check the nutrition labels to see how much fat is in certain food. In England, on the other hand, they simply use traffic-light colors to warn of excessive salt, fat and sugar. But who knows how they define “good” or “bad” when the numbers are missing? Germany’s regulations for cheese are even better. Manufacturers are required by law to display the fat content in dry weight Read More …

DeltaMaster clicks! 08/2007

Time analysis members

Greetings, fellow data analysts! It’s often the little things in life that make a big difference. How on earth did we ever survive back in the days before Blackberries, one-button coffee makers, or our beloved iPods? These and other modern necessities have one thing in common. They simplify our lives by saving us time or using it wisely. After all, everyone has it – but most of us would like more. And until someone invents a way to get more than Read More …