"A bit pointless given that most polling data is not derived from probability samples. Nowadays every player relies on panel samples which raise all sorts of issues about representativeness. They certainly aren't probability based. "
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A quick demonstration of polling confidence interval calculations using simulation
At dinner with friends last Sunday, the topic of conversation fixated on -- what else -- the upcoming presidential election. That morning, a poll had been released by the Washington…See More
Johns Hopkins, Covid-19 and R, Part III, World Data.
Summary: This blog is part III of a series showcasing management and analytics of the daily World Covid-19 case/death data published by the Center for Systems Science and Engineering at Johns Hopkins University.…See More
Johns Hopkins Covid-19 Data and R, Part II, data.table functions and graphics, plus R-Naught.
Summary: This blog is part II of a series showcasing management and analytics of the daily U.S. Covid-19 case/death data published by the Center for Systems Science and Engineering at Johns Hopkins University. Whereas …See More
"@steve -Steve i am running your post today, i have recently started using Julia,
your comment - A new competitor such as Julia is considerably behind from the get-go, remaining so until it can both attain a noticeable programmer presence and…"
Johns Hopkins Covid-19 Data and R, Part I -- data.table handling.
Summary: This blog showcases the handling of daily data of cases/deaths from Covid-19 in the U.S. published by the Center for Systems Science and Engineering at Johns Hopkins University. The technology deployed to manage and explore the data is R along with…See More
Multi-Dimensional Frequencies with R data.table.
A few years ago, in a Q&A session following a presentation I gave on data analysis (DA) to a group of college recruits for my then consulting company, I was asked to name what I considered the most important analytic technique. Though a surprise to the audience, my answer, counts and frequencies, was a no brainer for me.I've made a living doing data analysis over the…See More
"I have not used VAEX, just saw it in the blizzard of numerical libraries :)"
"thanks for bringing VAEX to my attention. have you worked with it? is it stable? performant? I'll definitely take a look."
"I'm addressing category vars in a future blog. There can be storage and performance advantages for both R factors and Pandas categories even when the number of levels is in the thousands."
"At some point VAEX might be what you want: Pandas API for data stored directly in memory-mapped files.
https://vaex.readthedocs.io/en/latest/"
Profile Information
- Job Title:
- consultant
- Seniority:
- Consultant
- Industry:
- Consulting
- 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.
- LinkedIn Profile:
- http://https://www.linkedin.com/in/steve-miller-58ab881/
- Interests:
- Other
Steve miller's Blog
A quick demonstration of polling confidence interval calculations using simulation
Posted on October 13, 2020 at 6:00am 1 Comment 0 Likes
At dinner with friends last Sunday, the topic of conversation fixated on -- what else -- the upcoming presidential election. That morning, a poll had been released by the …
ContinueJohns Hopkins, Covid-19 and R, Part III, World Data.
Posted on August 27, 2020 at 3:54am 0 Comments 1 Like
Summary: This blog is part III of a series showcasing management and analytics of the daily World Covid-19 case/death data published by the Center for Systems Science and…
ContinueJohns Hopkins Covid-19 Data and R, Part II, data.table functions and graphics, plus R-Naught.
Posted on June 2, 2020 at 8:33am 0 Comments 0 Likes
Summary: This blog is part II of a series showcasing management and analytics of the daily U.S. Covid-19 case/death data published by the Center for Systems Science and Engineering at Johns…
ContinueJohns Hopkins Covid-19 Data and R, Part I -- data.table handling.
Posted on May 6, 2020 at 8:27am 0 Comments 0 Likes
Summary: This blog showcases the handling of daily data of cases/deaths from Covid-19 in the U.S. published by the …
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