When stepping outside the domain of distributive and descriptive statistics for individual variables, we usually take interest in correlations between variables. To investigate them, we use various measures of the strength of relationship selected depending on the type of data and measurement level. Apart from determining the strength of a correlation, we are interested in WIĘCEJ
When creating a table, you can present weighted or unweighted data. As usual, the answer depends on the situation. You will get my meaning in a minute, but first, let me explain briefly what weighting adjustment is. In representative studies, you want to generalise sample results for the whole population. In order to achieve this, WIĘCEJ
Multiple choice questions where the respondent may select more than one answer are commonly used in surveys. How should the responses to such questions be presented in a table? In this post we will present two methods and discuss the differences between them and when to use them. As an example, let’s explore a topic WIĘCEJ
What combination of products frequently end up in a shopper’s basket? What services are usually bought together by consumers? Answers to these questions may be the key to increasing basket value through cross-selling. A good starting point for data exploration with cross-selling in mind is the humble crosstab. Technically speaking, the process of the customer WIĘCEJ
What data can we show on a regular bar chart? How many variables can we use? For those who answered ‘not enough’ the Marimekko chart may be the answer. What is the Marimekko chart? This type of chart is a 100 percent stacked barchart where the width of the bar is proportional to its share WIĘCEJ
Tabular presentation is one of the most universal reporting techniques. Despite the obvious advantages of this approach such as high result precision and compact layout, it has it’s drawbacks. Those who analyse large amounts of data in crosstabs every day know how tiresome and unrewarding this job is. In order to draw a conclusion whether WIĘCEJ
When presenting results, we often employ various types of charts that best suit the data. We want the presentation to be captivating. The choice of the chart is often a result of inside-the-box thinking suggested by templates offered by computer programmes. Consequently, having in mind the information to be presented, we tend to consider bar, WIĘCEJ
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