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Last December, I had a plumbing problem at my home, so I hired a plumber based on his reviews. It turned out that the man was deft at other repair work too! “Why don’t you advertise as a handyman?” I asked. “Plumbers make more than a handyman,” he replied. Back in mid-nineties, I finished my master’s degree in advanced manufacturing engineering and started looking for a job amid a recession....
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If you have a passion for visual analytics, you have likely read some of the classic books written by Dr. Edward Tufte. In his book, The Visual Display of Quantitative Information, Dr. Tufte introduced a slope graph. source: edwardtufte.com Slopegraphs compare changes in values over the ordinal scale for two time periods.   Slope graphs not only indicate a positive or negative trend but also show exact value along the...
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Many a times, I deal with a conundrum to create a table similar to a  manually formatted Excel, SSRS or BO report. One of the standard requirements I have seen is, “How can you show specific measures for certain dimension values and hide for certain dimension value?” For example, as shown in the depiction below, the user wants to see “Actual” and “Planned” numbers for the past months and only...
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Happy New Year! Let’s face it — many of Qlik developers know SQL. Is knowing SQL(Structured Query Language) essential to become a Qlik developer? Maybe. It’s a two-edged sword — SQL knowledge gives them a competitive advantage over someone who has no technical experience. Still, it can also pose some challenges when you want to use some of your favorite SQL functions and clauses while learning nuances of Qlik syntax....
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Stephen Few is undoubtedly an expert in the field of data visualization. He has an uncanny ability to articulate his viewpoints on how to use charts to tell a compelling data story. Obviously, he is not a fan of dessert or candy charts, such as pies or donuts. In this article, he has eloquently argued against another pretty candy chart — Lollipop chart. Lollipop chart may not fit the bill...
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