All Posts
Foi em Dezembro de 1991 que a relação do SAS e a Fidelidade começou, na altura entre o representante do SAS em Portugal e a Bonança, mais tarde integrada no que é hoje a Fidelidade, sendo que em 1995 e já com o SAS Portugal, foram assinados dois licenciamentos, um
A previous article describes the DFBETAS statistics for detecting influential observations, where "influential" means that if you delete the observation and refit the model, the estimates for the regression coefficients change substantially. Of course, there are other statistics that you could use to measure influence. Two popular ones are the
As a data scientist, did you ever come to the point where you felt the need for an evolved analytics platform bringing together the disparate skills of open source and commercial software? A system that can enable advanced analytic capabilities. This is now possible and easy to implement. With many
La invitación a transformarse se hace cada día más fuerte y de eso fuimos testigos los más de 6 mil asistentes a EXMA 2019 en Bogotá, evento que, además de la presencia del expresidente Barack Obama, causó un impacto profundo entre analistas, periodistas y empresarios a través de los mensajes
Major European football (soccer) leagues came to an end after an intensive year. Manchester City claimed the Premier League title after a high-intensity title race against Liverpool. It is unbelievable that Liverpool would have won 25 out of the last 27 PL titles with 97 points. Luckily, the Reds
What is Item Response Theory? Item Response Theory (IRT) is a way to analyze responses to tests or questionnaires with the goal of improving measurement accuracy and reliability. A common application is in testing a student’s ability or knowledge. Today, all major psychological and educational tests are built using IRT.
Cualquiera podría decir que el penalti que Damir Skomina le pitó a Sissoko cuando solo se habían jugado 22 segundos de la final de la Champions League (el penalti más rápido jamás pitado en una final) fue definitivo para que el Liverpool ganara su sexta estrella europea. Es cierto que
David Loshin suggests that reference data could be the foundation of future governance structures.
Is your life philosophy putting you on the path to success? Vice President for US Government, Grant Brooks’ philosophy is doing just that. It guides every facet of his life. Focusing on significance will lead to success “For as long as I can remember, I have carried this deeply held
My article about deletion diagnostics investigated how influential an observation is to a least squares regression model. In other words, if you delete the i_th observation and refit the model, what happens to the statistics for the model? SAS regression procedures provide many tables and graphs that enable you to
In these modern times, my utility bill has a bar chart so I can see how my current consumption compares to my historical usage. I decided to create my own version of this utility bill bar chart, and make a few improvements along the way. If you're into SGplot bar
Sin duda, el liderazgo es una de las habilidades fundamentales que garantiza nuestro éxito en el mundo de los negocios, y como mujeres, siempre nos hemos visto en la obligación de respaldar cada uno de nuestros logros a través de un fuerte compromiso laboral. Sin embargo, ser una mujer trabajadora
If you're curious what makes SAS a great workplace, one answer always rises to the top - our people. It's no secret that the people who work here are some of the best and brightest - not to mention the most passionate, accountable, authentic and curious people you'll ever meet.
In this 'Rosetta Graph' example, I demonstrate how to control bar chart colors in Gchart and SGplot. But first, here's a little diversion... some artwork in my office here at SAS. There's a *lot* of artwork hanging around at SAS, but this particular painting wasn't created by the SAS artists
It’s that time of year again — picnics, parties, and backyard cookouts. The smells of summer are starting to permeate the air — fresh cut grass, honeysuckles, sunscreen, and the aroma your neighbors’ dinner floating from their grill into your nose.