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steve miller
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  • Chicago, Il
  • United States
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steve miller's blog post was featured

Writing/Reading Large R dataframes/data.tables -- Addendum.

After posting my most recent blog using census data to illustrate handling "large" dataframes in R exploiting fst and feather file formats, I realized I could have taken the analysis a step…See More
Jul 2
Lim Siew Cheng commented on steve miller's blog post Writing/Reading Large R dataframes/datatables.
"Hi there,  I am trying to follow your article hereand just wanted point out the PUMS is actually this https://factfinder.census.gov/bkmk/navigation/1.0/en/d_dataset%3AACS_17_5YR/d_product_type%3APUMS?# This is because I was wondering to put in…"
Jun 27
steve miller's blog post was featured

Writing/Reading Large R dataframes/datatables.

I recently downloaded a 5 year Public Use Microsample (PUMS) from the latest release of the American Community Survey (ACS) census data. The data contain a wealth of demographic information on both American households and individuals (population). The final household and…See More
Jun 24
steve miller's blog post was featured

Nowcasting Chicago Crime with Python-Pandas, and R.

In my many years as a data scientist, I've spent more time doing forecast work than any other type of predictive modeling. Often as not, the challenges have involved forecasting demand for an organization's many products/lines of business a year or more out based on five or more years of actual data, generally of daily granularity. A difficult task indeed and one for…See More
May 7
steve miller's blog post was featured

Frequencies in Pandas Redux

 A little less than a year ago, I posted a blog on generating multivariate frequencies with the Python Pandas data management library, at the same time showcasing Python/R graphics interoperability. For my data science work, the ability to produce…See More
Apr 25
steve miller's blog post was featured

March Madness, KenPom and Python/Pandas.

March Madness officially arrived at 6 PM CDT, Sunday 3/17/2019. 68 D1 schools -- 32 league champions and 36 at large selections -- received invitations to this year's tournament, which starts Tuesday.Today and tomorrow, fans will work feverishly preparing their brackets. Most will use intuition or simply guess to pick game results. Others like me, though, will use…See More
Mar 24
steve miller's blog post was featured

March Madness, KenPom and Python/Pandas.

March Madness officially arrived at 6 PM CDT, Sunday 3/17/2019. 68 D1 schools -- 32 league champions and 36 at large selections -- received invitations to this year's tournament, which starts Tuesday.Today and tomorrow, fans will work feverishly preparing their brackets. Most will use intuition or simply guess to pick game results. Others like me, though, will use…See More
Mar 18
steve miller's blog post was featured

A Blast from Python Past -- Part 3

Last time, I posted Part 2 of a blog trilogy on data programming with Python. That article revolved on showcasing NumPy, …See More
Mar 4
Richard Boire commented on steve miller's blog post R, Python, Julia -- and Polyglot
"Gents, At the end as I said before, who cares. If you can manipulate data from a variety of different files to create one analytical file that will provide the right info to solve the business problem , you are done. And if you can it done using an…"
Feb 12
Paul Bremner commented on steve miller's blog post R, Python, Julia -- and Polyglot
"Hi Steve, Just noticed your comment to Richard (must have been preoccupied in mid-December.)  I'm curious about your statement that the SAS data step, proc, macro, etc. are clunky. As SAS studio is taking off, most "programming"…"
Feb 12
steve miller posted a blog post

A Blast from Python Past -- Part 2

Last week I posted the first of a three-part series on basic data programming with Python. For that article, I resurrected scripts written 10 years ago that deployed core Python data structures and functions to assemble a Python list for analyzing stock market returns. While it was fun…See More
Feb 5
steve miller's blog post was featured

A Blast from Python Past -- Part 2

Last week I posted the first of a three-part series on basic data programming with Python. For that article, I resurrected scripts written 10 years ago that deployed core Python data structures and functions to assemble a Python list for analyzing stock market returns. While it was fun…See More
Feb 5
steve miller's blog post was featured

A Blast from Python Past

I had an interesting discussion with one of my son's friends at a neighborhood gathering over the holidays. He's just reached the halfway point of a Chicago-area Masters in Analytics program and wanted to pick my brain on the state of the discipline.Of the four major program foci of business, data, computation, and algorithms, he acknowledged he liked computation best,…See More
Jan 28
Eric Gitonga liked steve miller's blog post a Little SQL with a Little R
Jan 23
steve miller's blog post was featured

Kicking Chicago with R.

Like most Chicago football fans, I was pretty distraught after the Bears lost last Sunday's playoff game courtesy of a missed field goal at the end -- a kick that first hit the goalpost and then the crossbar before ultimately failing miserably. While most local fans were grief-stricken like me, some were irrationally inconsolable, demanding the scalp, and worse, of the…See More
Jan 11
Adrian Walker commented on steve miller's blog post a Little SQL with a Little R
"Your nephew may be interested in the online Executable English system.  It automatically generates SQL that would be too complex to write reliably by hand, and it gives English explanations of results.   Here's a short paper:…"
Jan 2

Profile Information

Short Bio
40 years experience in consulting services surrounding BI, statistics, analytics, and data science. Most recent position was President of Inquidia Consulting and EVP of BI/Analytics at Braun Consulting. have been a writer for information management, dataversity, and beyenetwork for 12 years.
My Web Site Or LinkedIn Profile
http://https://www.linkedin.com/in/steve-miller-58ab881/
Professional Status
Consultant
Years of Experience:
40
Industry:
Consulting
Your Job Title:
consultant
How did you find out about DataScienceCentral?
researching data science topics. looking to find a venue for some of my blogs.
Interests:
Other
What is your Favorite Data Mining or Analytical Website?
http://www.datasciencecentral.com
What Other Analytical Website do you Recommend?
http://www.oreilly.com

Steve miller's Blog

Writing/Reading Large R dataframes/data.tables -- Addendum.

Posted on July 2, 2019 at 9:00am 0 Comments



After posting my most recent blog using …

Continue

Writing/Reading Large R dataframes/datatables.

Posted on June 24, 2019 at 12:42pm 1 Comment

I recently downloaded a 5 year Public Use Microsample (PUMS) from the latest release of the American Community Survey (ACS) census data. The data contain a wealth of demographic information on both American households and…

Continue

Simulated Significance

Posted on May 30, 2019 at 7:56am 0 Comments

I pulled out a dusty copy of Thinking Stats by Allen Downey the other day. I highly recommend this terrific little read that teaches statistics with easily understood examples using Python. When I purchased the book eight years ago, the Python code proved invaluable as…

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Nowcasting Chicago Crime with Python-Pandas, and R.

Posted on May 7, 2019 at 5:34am 1 Comment

In my many years as a data scientist, I've spent more time doing forecast work than any other type of predictive modeling. Often as not, the challenges have involved forecasting demand for an organization's many products/lines of business a year or more out based on five or more years of actual data, generally of daily…

Continue

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