We typically start with the data matrix, a rectangular array of rows and columns. If we type its name on the R command line, it will show itself. But the data matrix is hard to read, even when there are not many rows or columns. The h...
We typically start with the data matrix, a rectangular array of rows and columns. If we type its name on the R command line, it will show itself. But the data matrix is hard to read, even when there are not many rows or columns. The h...
Almost once every year someone asks if R has a package for running the MaxDiff procedure sold by Sawtooth. One such inquiry recently received a reply with a link showing in some detail the R code needed to generate a balanced incomplete...
Survey research deals with the problem of question wording by always asking the same question. Thus, the Gallup Daily Tracking is filled with examples of moving averages for the exact same question asked precisely the same way every day. &nb...
Context awareness seems to be everywhere, and everyone seems to be saying that context matters. Gartner foresees "a game-changing opportunity" in what it calls context-aware computing. The title of their report states it best, "Context Shap...
Are halo effects real or illusory? Much has been written arguing that rating scales contain extensive amounts of measurement bias. Some tells us to avoid ratings altogether (What do customers really want?). Others ...
A Beginner's Guide to Irrational Behavior started yesterday. One might not immediately think that such a course would be relevant for statistical modeling. Well, it is if your statistical modeling uses people as informants. If the dat...
I raise this question because we see calls for running segmentation with individual estimates from hierarchical Bayes choice models without any mention of the possible complications that might accompany such an approach. Actually, ...
I raise this question because we see calls for running segmentation with individual estimates from hierarchical Bayes choice models without any mention of the possible complications that might accompany such an approach. Actually, ...
I raise this question because we see calls for running segmentation with individual estimates from hierarchical Bayes choice models without any mention of the possible complications that might accompany such an approach. Actually, ...
It can be difficult to work your way through hierarchical Bayes choice modeling. There is just too much new to learn. If nothing else, one gets lost in all ways that choice data can be collected and analyzed. Then there is all this ou...
