Not Even Scientists Can Easily Explain P-values | FiveThirtyEight

July 18, 2017 no comments Posted in Análise de Dados

What I learned by asking all these very smart people to explain p-values is that I was on a fool’s errand. Try to distill the p-value down to an intuitive concept and it loses all its nuances and complexity, said science journalist Regina Nuzzo, a statistics professor at Gallaudet University. “Then people get it wrong, and this is why statisticians are upset and scientists are confused.” You can get it right, or you can make it intuitive, but it’s all but impossible to do both.

Source: Not Even Scientists Can Easily Explain P-values | FiveThirtyEight

thesis – The difference between literature review and background sections of a dissertation – Academia Stack Exchange

July 17, 2017 no comments Posted in Análise de Dados

I was assuming these two were the same. What is the difference between them? How does one relate to another? The context here is an MA (Master of Arts) level social science dissertation in UK education system. Should background talk about relevant research done? If so why does literature review exist? Or should the background chose only a few literature and discuss them throughly?

Source: thesis – The difference between literature review and background sections of a dissertation – Academia Stack Exchange

The Value of Empirical Evidence for Practitioners and Researchers

July 17, 2017 no comments Posted in Análise de Dados

The empirical software engineering research community has two general aims: 1 To understand how software is actually developed and maintained; and 1 To understand what improvements should be made to software development and maintenance, and how those improvements should be implemented. Empirical software engineering research, therefore, is about both contemplation and action. It is a discipline which attempts to understand phenomena whilst at the same time trying to change those very phenomena (in order to improve them). And it is a discipline that, by definition, promotes empirical evidence as the primary source of reliable knowledge for achieving these two general aims.

Austen Rainer

Source: The Value of Empirical Evidence for Practitioners and Researchers

Streaming data processing is a big deal in big data these days, and for good reasons.

July 17, 2017 no comments Posted in Análise de Dados

Streaming data processing is a big deal in big data these days, and for good reasons. Amongst them:

  • Businesses crave ever more timely data, and switching to streaming is a good way to achieve lower latency.
  • The massive, unbounded data sets that are increasingly common in modern business are more easily tamed using a system designed for such never-ending volumes of data.
  • Processing data as they arrive spreads workloads out more evenly over time, yielding more consistent and predictable consumption of resources.

Despite this business-driven surge of interest in streaming, the majority of streaming systems in existence remain relatively immature compared to their batch brethren, which has resulted in a lot of exciting, active development in the space recently.

read more at

Source: The world beyond batch: Streaming 101 – O’Reilly Media

Leitura Recomendada: “Reading and Understanding More Multivariate Statistics”

July 15, 2017 no comments Posted in Análise de Dados, Publicando e Lendo

Esbarrei com esse livro na biblioteca da Universidade do Minho em Portugal e estou gostando muito.

Combinação perfeita entre clarificação de conceitos,  algum rigor e referências para se completar os estudos.

Source: Reading and Understanding More Multivariate Statistics: 9781557986986: Medicine & Health Science Books @ Amazon.com

Você se dispersa quando em frente a tela de do computador?  Focusbar pode ajudar. 

July 15, 2017 no comments Posted in Análise de Dados

“Basta digitar o que você quer fazer, e a Focusbar lembrará gentilmente não mexer com outras coisas e voltar ao trabalho.

Se você é facilmente distraído, não há melhor maneira de mantê-lo focado, do que usar o Focusbar e nós sabemos por nós usamos.

Toda vez que você muda para outra janela, o Focusbar aparecerá – caso queira verificar sua conta do Facebook ou passar duas horas no Twitter.

É como uma pequena palmadinha no ombro, dizendo – você procrastinador bobo e bobo, eu sei o que você está fazendo. Pare e volte ao trabalho.”

Source: Focusbar.app – simply bring your tasks to a focus

Getting the Expected Space Before a Heading (Microsoft Word)

July 12, 2017 no comments Posted in Análise de Dados

by Allen Wyatt
(last updated May 9, 2016)

If you take advantage of styles in your Word documents, they can make your formatting much more consistent and easier than formatting manually. You can define styles for all sorts of elements in your documents.

One of the most common document elements to format is different heading levels. When formatting headings, it is not unusual to set them off from surrounding text by adding additional space before them. Word lets you do this in the style definition for the heading. You can specify virtually any amount of additional space before the heading that you want.

When your heading style includes additional space before the paragraph, you may be surprised when Word sometimes fails to add that expected space. For instance, when the heading appears right after a page break or a column break, Word normally doesn’t include that extra space. Instead, the heading appears right up at the top of the page or column.

Source: Getting the Expected Space Before a Heading (Microsoft Word)