Uncategorized

Rick Wicklin 0
Discover power laws by log-transforming data

A recent issue of Astronomy magazine mentioned Kepler's third law of planetary motion, which states "the square of a planet's orbital period is proportional to the cube of its average distance from the Sun" (Astronomy, Dec 2016, p. 17). The article included a graph (shown at the right) that shows

Rick Wicklin 0
Append data to add markers to SAS graphs

Do you want to create customized SAS graphs by using PROC SGPLOT and the other ODS graphics procedures? An essential skill that you need to learn is how to merge, join, append, and concatenate SAS data sets that come from different sources. The SAS statistical graphics procedures (SG procedures) enable

Rick Wicklin 0
Sampling variation in small random samples

Somewhere in my past I encountered a panel of histograms for small random samples of normal data. I can't remember the source, but it might have been from John Tukey or William Cleveland. The point of the panel was to emphasize that (because of sampling variation) a small random sample

Analytics
Michael Herrmann 0
EU-Datenschutz-Grundverordnung: Wieso jetzt handeln?

Ab 2018 verschärft die EU massiv den Datenschutz. Betroffen ist weltweit jedes Unternehmen, das EU-Bürgern etwas anbietet, ihr Kauf&Klick-Verhalten analysiert oder im Auftrag verarbeitet. Erste Projekte sind bereits gestartet, um die geforderten „angemessenen Maßnahmen“ real auch nachweisen zu können. Denn hohe Strafen und schlechte Presse lauern. Es lockt das Vertrauen

Data Management
Jim Harris 0
The growing importance of big data quality

Our world is now so awash in data that many organizations have an embarrassment of riches when it comes to available data to support operational, tactical and strategic activities of the enterprise. Such a data-rich environment is highly susceptible to poor-quality data. This is especially true when swimming in data lakes –

1 129 130 131 132 133 259