Adding trendlines to PowerPivot
It started during a presentation of Cathy Dumas [http://cathydumas.com/] at the
latest SQLBits [http://sqlbits.com/] where she compared the different charting
capabilities of Excel, Power View, PerformancePoint and Reporting Service. One
of those capabilities were trendlines who are missing in V1 of Power View. She
suggested to add a trendline as a measure, but didn’t succeed, so she raised a
challenge. And here I am taking this challenge to add a trendline to a
P