There have been some information on a couple of really excellent research papers on pie charts released today from Robert Kosara (@eagereyes) and Drew Skau (@SeeingStructure) :
I had, coincidentally, been doing some research of my own on perceptual anchors and how that relates to performance of pie charts versus stacked bar charts in part-to-whole comparisons. It would suggest that pies are not the terrible bad-guy after all. Who knew!
Stephen Redmond is a Data Visualization professional. He is author of Mastering QlikView, QlikView Server and Publisher and the QlikView for Developer's Cookbook
I have a small query. Hope you can help me on this.
I have three different sources which I get as QVX file( Source1.qvx source2.qvx source3.qvx). I'm directly importing this qvx files into the qlikview. In these three sources I have common variables Year, Month , Day. Since Source1 is my main data. I created a drop down the qlikview for user selection. I’m looking for global variable when user selects year , month, day from the source1 the selection must be pass as parameters(year, Mon,Day) to source2 and source3 inputs.
Sources: Source1, Source2, Source3
Parameters to be passed : Year, Month, Day
From: Source1 To: Source2,Source3
Data: In source1
Year Month Day
2015 Jan 1
2015 Jan 2.
If you want me to provide me with test data I can do that.