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A correlation matrix is a table of correlation coefficients for a set of variables. They are often used to determine if a relationship exists between…

A pictograph bar chart uses multiple icons to represent the values in each bar. Pictograph bar charts can make a visualization more recognizable and interesting.…

You can use Q to smooth time series data in two ways: by adding a trend line to a Visualization chart, or by using Time Series charts.

In Q, trend lines can easily be added to many Visualizations. Trend lines can be linear or non-parametric (cubic splines, Friedman’s super smoother, LOESS).

Van Westendorp analysis, common in market research, aims to find the optimal price point at which to sell a good or service. You find this…

In our last post on visualizations, we looked at how easy it is to generate visualizations in Q. In that post, we outlined how you can…

Visualizations bring the relationships in your data to life through engaging graphics – all at the tip of your fingers in Q5. These visualizations are made…

Correspondence Analysis in Q

If you have spent much time analyzing survey data, then you have probably spent a lot of time validating it. This normally entails checking that the number…

You can take your correspondence analysis plots to the next level by including images. Here is a guide to creating them in Q.