News and Info

  • Reviewing the Book "Tools for Smart Thinking"

    Thursday, July 7, 2016 - 08:30
    “The logic of science is the logic of business and life” -- quote from philosopher John Stuart Mill -- is the opening salvo of Richard Nisbett's new book, "Mindware: Tools for Smart Thinking" Alas, the human species is generally not very “logic of science” friendly, hence the motivation for professor Nisbett's approachable tome to advance a clear-thinking, evidence-responsive populace. Mindware isn't the first social science book to address human weaknesses in scientific thinking. Indeed, in... [more]
  • Pentaho Data Integration Best Practices: Lookup Most Recent Record

    Wednesday, July 6, 2016 - 10:00
    What are the best practice options for looking up the “most recent record” in Pentaho? [more]
  • Pentaho Data Integration Best Practices: Key-based, Single Record Lookup

    Wednesday, June 22, 2016 - 09:00
    What's the best method to use for key-based lookups in Pentaho? Check this out. [more]
  • Pentaho Data Integration Best Practices: Lookup Optimization

    Thursday, June 16, 2016 - 09:00
    A common issue we find in processes created by novice users is either the misuse or inefficient configuration of these data lookup steps. [more]
  • Making a Return Visit to Macro-Econometrics

    Friday, June 3, 2016 - 12:45
    Every once in a while, my Facebook meanderings lead me to a fruitful analytics destination. And so it was last week when I stumbled across an interesting article: “ Improving the Teaching of Econometrics ”, by university professors David Hendry and Grayham Mizon. It's been quite a while since I studied econometrics, but as I've glanced at leading texts over the years, I've been struck by how similar the field remains to the one I... [more]
  • New Jobs Analysis with Python: Which Party Created Jobs?

    Wednesday, June 1, 2016 - 10:15
    The presidential race is heating up as primaries come to an end. And if it’s Trump vs Clinton, there’ll be no shortage of strong opinion among the electorate as to which offers the best policies for economics, defense, energy, health care, etc. Last year I posted a series of blogs on Dataversity pertaining to the “economic” performance of presidents over the last seventy years. Part of my motivation was to have fun with my “red”... [more]
  • Using R, ggplot2, Plotly, and the Plotly Cloud for Analytical Applications

    Thursday, May 19, 2016 - 11:15
    In this visualization, Steve Miller from Inquidia Consulting monitors performance of the stock market in 2016 using daily index data available from Russell. The graphs track the current value of an initial $1 investment starting end of day December 31, 2015. Eighteen separate portfolios dimensioned by company size and a growth-value continuum are shown. The challenge is to provide an interpretable dashboard that includes all 18 traces in a way that can easily be compared... [more]
  • Join Snowflake and Inquidia for lunch! Wed, May 18 2016

    Friday, May 13, 2016 - 14:00
    Join Snowflake and Inquidia for lunch! Learn how to enable faster time to value with a data driven differentiator... Wednesday, May 18th, 2016 11:30 a.m. - 1:30 p.m. CT Be sure to attend for your chance to win an Apple Watch! Atwood Restaurant Hotel Burnham 1 West Washington Street Chicago, IL 60602 Come away learning how to: Enable data-driven decision-making through enterprise-level analytics Give data analysts quick and easy access to diverse data at any... [more]
  • Web Scraping for Data Science — Part 2

    Wednesday, May 4, 2016 - 12:15
    Between R and Python, analytics pros are covered on most data science bases R-Python . In last month’s blog , I discussed simple webscraping using Python in a Jupyter notebbok, the nifty css-generating tool SelectorGadget , and the Python XML and HTML handling package lxml . This month I turn to R in Jupyter and and a similarly-focused package, rvest , written by R luminary Hadley Wickham. Let’s take a look at the code. 1)... [more]
  • Data, Algorithms – and Designs

    Thursday, April 28, 2016 - 09:45
    I came across an interesting read the other day surfing my digital The Economist . The article summarizes an academic paper by three foreign professors entitled "Directors as Connectors: The Impact of the External Networks of Directors on Firms" . The paper's point of departure is that in the U.S., the external networks of a company's board of directors significantly impact firm value and decisions. The authors hypothesize that such relationships drive business in proportion... [more]


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