What is Data Virtualization?

Posted by Armando Brito Mendes | Filed under videos

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Muito clara introdução ao tema da virtualização de dados.

What is Data Virtualization?

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Hi I’m Jared Hillam, There are a lot of parts and components that
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go into accurately gathering data. However, at the heart of any well-crafted solution
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is the data integration and query logic. This is the logic that tells the database what
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data is being requested and how to process it. Where that logic exists turns out to be
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a very important topic when all is said and done as you’ll find in this video. To illustrate
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this let me share with you an example. Many years ago I worked for a software company
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that sought out to fix a common problem found in Operational Reporting. We developed a product
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that allowed you to open 1000s of operational reports and edit all of them at once. Why

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Read more | Comments off | February 24th, 2015

An Example of R Versatility

Posted by Armando Brito Mendes | Filed under estatística, software

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An Example of R Versatility

By Dave Collingridge

In my last blog post I mentioned a few advantages to learning R. One of those advantages is that R opens up a world of new data analyses. There are novel techniques available in R that are not found in the ANALYZE drop down menus of SPSS, Stata, and Statistica. Novel techniques in R can be a big help in situations where data are not well-suited for traditional analyses like t-tests, ANOVA, and regression.

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Read more | Comments off | February 6th, 2015

Best Uses of Data Visualization

Posted by Armando Brito Mendes | Filed under videos, visualização

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Um curto mas bom vídeo sobre as várias facetas da visualização de dados.

Best Uses of Data Visualization
February 1, 2015

Data visualizations are everywhere these days, and why? Think of data visualization as information at a glance, a kind of language of statistics for the eyes.

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Read more | Comments off | February 2nd, 2015