### Distributed Solar: The Democratizaton of Energy

### Blogroll

- Leadership lessons from Lao Tzu
- All about models
- Mertonian norms
- International Society for Bayesian Analysis (ISBA)
- Tim Harford's “More or Less'' Tim Harford explains – and sometimes debunks – the numbers and statistics used in political debate, the news and everyday life
- Patagonia founder Yvon Chouinard on how businesses can help our collective environmental mess Patagonia’s Yvon Chouinard set the standard for how a business can mitigate the ravages of capitalism on earth’s environment. At 81 years old, he’s just getting started.
- Fear and Loathing in Data Science Cory Lesmeister’s savage journey to the heart of Big Data
- Survey Methodology, Prof Ron Fricker http://faculty.nps.edu/rdfricke/
- Hermann Scheer Hermann Scheer was a visionary, a major guy, who thought deep thoughts about energy, and its implications for humanity’s relationship with physical reality
- "Perpetual Ocean" from NASA GSFC
- Professor David Draper
- Dominic Cummings blog Chief advisor to the PM, United Kingdom
- Busting Myths About Heat Pumps Heat pumps are perhaps the most efficient heating and cooling systems available. Recent literature distributed by utilities hawking natural gas and other sources use performance figures from heat pumps as they were available 15 years ago. See today’s.
- London Review of Books
- Charlie Kufs' "Stats With Cats" blog “You took Statistics 101. Now what?”
- Dollars per BBL: Energy in Transition
- Pat's blog While it is described as “The mathematical (and other) thoughts of a (now retired) math teacher”, this is false humility, as it chronicles the present and past life and times of mathematicians in their context. Recommended.
- Mrooijer's Numbers R 4Us
- Leverhulme Centre for Climate Change Mitigation
- Healthy Home Healthy Planet
- The Plastic Pick-Up: Discovering new sources of marine plastic pollution
- "Consider a Flat Pond" Invited talk introducing systems thinking, by Jan Galkowski, at First Parish in Needham, UU, via Zoom
- Simon Wood's must-read paper on dynamic modeling of complex systems I highlighted Professor Wood’s paper in https://hypergeometric.wordpress.com/2014/12/26/struggling-with-problems-already-attacked/
- Awkward Botany
- James' Empty Blog
- Dr James Spall's SPSA
- John Kruschke's "Dong Bayesian data analysis" blog Expanding and enhancing John’s book of same title (now in second edition!)
- BioPython A collection of Python tools for quantitative Biology
- Risk and Well-Being
- Brian McGill's Dynamic Ecology blog Quantitative biology with pithy insights regarding applications of statistical methods
- Tony Seba Solar energy, electric vehicle, energy storage, and business disruption professor and visionary
- Bob Altemeyer on authoritarianism (via Dan Satterfield) The science behind the GOP civil war
- Subsidies for wind and solar versus subsidies for fossil fuels
- Gabriel's staircase
- Karl Broman
- ggplot2 and ggfortify Plotting State Space Time Series with ggplot2 and ggfortify
- OOI Data Nuggets OOI Ocean Data Lab: The Data Nuggets
- Giant vertical monopolies for energy have stopped making sense
- Label Noise
- Darren Wilkinson's introduction to ABC Darren Wilkinson’s introduction to approximate Bayesian computation (“ABC”). See also his post about summary statistics for ABC https://darrenjw.wordpress.com/2013/09/01/summary-stats-for-abc/
- "Impacts of Green New Deal energy plans on grid stability, costs, jobs, health, and climate in 143 countries" (Jacobson, Delucchi, Cameron, et al) Global warming, air pollution, and energy insecurity are three of the greatest problems facing humanity. To address these problems, we develop Green New Deal energy roadmaps for 143 countries.
- What If
- The Alliance for Securing Democracy dashboard
- Earth Family Alpha Michael Osborne’s blog (former Executive at Austin Energy, now Chairman of the Electric Utility Commission for Austin, Texas)
- John Cook's reasons to use Bayesian inference
- Comprehensive Guide to Bayes Rule
- Rasmus Bååth's Research Blog Bayesian statistics and data analysis
- Gavin Simpson
- Quotes by Nikola Tesla Quotes by Nikola Tesla, including some of others he greatly liked.
- Carl Safina's blog One of the wisest on Earth

### climate change

- US$165/tonne CO2: Sweden Sweden has a Carbon Dioxide tax of US$165 per tonne at present. CO2 tax was imposed in 1991. GDP has grown 60%.
- Climate model projections versus observations
- "Lessons of the Little Ice Age" (Farber) From Dan Farber, at LEGAL PLANET
- Steve Easterbrook's excellent climate blog: See his "The Internet: Saving Civilization or Trashing the Planet?" for example Heavy on data and computation, Easterbrook is a CS prof at UToronto, but is clearly familiar with climate science. I like his “The Internet: Saving Civilization or Trashing the Planet” very much.
- The Sunlight Economy
- Climate Change Reports By John and Mel Harte
- James Powell on sampling the climate consensus
- World Weather Attribution
- "Climate science is setttled enough"
- Sea Change Boston
- Grid parity map for Solar PV in United States
- "Warming Slowdown?" (part 1 of 2) The idea of a global warming slowdown or hiatus is critically examined, emphasizing the literature, the datasets, and means and methods for telling such. In two parts.
- Ray Pierrehumbert's site related to "Principles of Planetary Climate" THE book on climate science
- Berkeley Earth Surface Temperature
- Ice and Snow
- Tell Utilities Solar Won't Be Killed Barry Goldwater, Jr’s campaign to push for solar expansion against monopolistic utilities, as a Republican
- Klaus Lackner (ASU), Silicon Kingdom Holdings (SKH) Capturing CO2 from air at scale
- "Getting to the Energy Future We Want," Dr Steven Chu
- NOAA Annual Greenhouse Gas Index report The annual assessment by the National Oceanic and Atmospheric Administration of the radiative forcing from constituent atmospheric greenhouse gases
- Isaac Held's blog In the spirit of Ray Pierrehumbert’s “big ideas come from small models” in his textbook, PRINCIPLES OF PLANETARY CLIMATE, Dr Held presents quantitative essays regarding one feature or another of the Earth’s climate and weather system.
- Documenting the Climate Deniarati at work
- "When Did Global Warming Stop" Doc Snow’s treatment of the denier claim that there’s been no warming for the most recent N years. (See http://hubpages.com/@doc-snow for more on him.)
- "Betting strategies on fluctuations in the transient response of greenhouse warming" By Risbey, Lewandowsky, Hunter, Monselesan: Betting against climate change on durations of 15+ years is no longer a rational proposition.
- An open letter to Steve Levitt
- Transitioning to fully renewable energy Professor Saul Griffiths talks to transitioning the customer journey, from a dependency upon fossil fuels to an electrified future
- SolarLove
- Agendaists Eli Rabett’s coining of a phrase
- Spectra Energy exposed
- Sir David King David King’s perspective on climate, and the next thousands of years for humanity
- AIP's history of global warming science: impacts The American Institute of Physics has a fine history of the science of climate change. This link summarizes the history of impacts of climate change.
- Earth System Models
- Energy payback period for solar panels Considering everything, how long do solar panels have to operate to offset the energy used to produce them?
- Tuft's Professor Kenneth Lang on the physical chemistry of the Greenhouse Effect
- CLIMATE ADAM Previously from the Science news staff at the podcast of Nature (“Nature Podcast”), the journal, now on YouTube, encouraging climate action through climate comedy.
- Warming slowdown discussion
- SOLAR PRODUCTION at Westwood Statistical Studios Generation charts for our home in Westwood, MA
- “The discovery of global warming'' (American Institute of Physics)
- RealClimate
- Risk and Well-Being
- Climate at a glance Current state of the climate, from NOAA
- “The Irrelevance of Saturation: Why Carbon Dioxide Matters'' (Bart Levenson)
- Climate Communication Hassol, Somerville, Melillo, and Hussin site communicating climate to the public
- James Hansen and granddaughter Sophie on moving forward with progress on climate
- Wind sled Wind sled: A zero carbon way of exploring ice sheets
- Tamino's Open Mind Open Mind: A statistical look at climate, its science, and at science denial
- Skeptical Science
- Ellenbogen: There is no Such Thing as Wind Turbine Syndrome
- Mathematics and Climate Research Network The Mathematics and Climate Research Network (MCRN) engages mathematicians to collaborating on the cryosphere, conceptual model validation, data assimilation, the electric grid, food systems, nonsmooth systems, paleoclimate, resilience, tipping points.
- Simple models of climate change
- The Keeling Curve The first, and one of the best programs for creating a spatially significant long term time series of atmospheric concentrations of CO2. Started amongst great obstacles by one, smart determined guy, Charles David Keeling.

### Archives

### Jan Galkowski

# Category Archives: statistics

## What is the Tukey loss function?

Originally posted on Statistical Odds & Ends:

The Tukey loss function The Tukey loss function, also known as Tukey’s biweight function, is a loss function that is used in robust statistics. Tukey’s loss is similar to Huber loss in that…

Posted in loss functions, optimization, statistics
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## a song in praise of data scientist Rebekah Jones

I linked to Rebekah Jones‘ keynote address at the August 2020 Data Science Conference on COVID-19 sponsored by the National Institute for Statistical Science. Below is a song in tribute to her, wishing her well. (h/t Bill McKibben) We’re doing … Continue reading

Posted in American Association for the Advancement of Science, American Mathematical Society, American Statistical Association, Boston Ethical Society, children as political casualties, Data for Good, data science, geographic, geographic information systems, International Society for Bayesian Statistics, journalism, mathematics, New England Statistical Society, pandemic, Rebekah Jones, Risky Talk, science, Significance, statistical ecology, statistics, the problem of evil, whistleblowing, ``The tide is risin'/And so are we''
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Rationalists, wearing square hats, Think, in square rooms, Looking at the floor, Looking at the ceiling. They confine themselves To right-angled triangles. If they tried rhomboids, Cones, waving lines, ellipses– As, for example, the ellipse of the half- moon– Rationalists … Continue reading

Posted in statistics
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## Calculating Derivatives from Random Forests

(Comment on prediction intervals for random forests, and links to a paper.) (Edits to repair smudges, 2020-06-28, about 0945 EDT. Closing comment, 2020-06-30, 1450 EDT.) There are lots of ways of learning about mathematical constructs, even about actual machines. One … Continue reading

Posted in bridge to somewhere, Calculus, dependent data, dynamic generalized linear models, dynamical systems, ensemble methods, ensemble models, filtering, forecasting, hierarchical clustering, linear regression, model-free forecasting, Monte Carlo Statistical Methods, non-mechanistic modeling, non-parametric model, non-parametric statistics, numerical algorithms, prediction, R statistical programming language, random forests, regression, sampling, splines, statistical learning, statistical series, statistics, time derivatives, time series
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## COVID-19 statistics, a *caveat* : Sources of data matter

There are a number of sources of COVID-19-related demographics, cases, deaths, numbers testing positive, numbers recovered, and numbers testing negative available. Many of these are not consistent with one another. One could hope at least rates would be consistent, but … Continue reading

## “There’s mourning in America”

“We are Republicans and we want Trump defeated.” And the Orange Mango apparently hates this advert. And that’s why it’s here. The Lincoln Project apparently introduced this advert on Twitter with the explanatory text: Since you are awake and trolling … Continue reading

Posted in statistics
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## “Seasonality of COVID-19, Other Coronaviruses, and Influenza” (from Radford Neal’s blog)

Thorough review with documentation and technical criticism of claims of COVID-19 seasonality or its lack. Whichever way this comes down, the links are well worth the visit! Will the incidence of COVID-19 decrease in the summer? There is reason to … Continue reading

## Simplistic and Dangerous Models

Originally posted on Musings on Quantitative Palaeoecology:

A few weeks ago there were none. Three weeks ago, with an entirely inadequate search strategy, ten cases were found. Last Saturday there were 43! With three inaccurate data points, there is enough information…

## “Lockdown WORKS”

Originally posted on Open Mind:

Over 2400 Americans died yesterday from Coronavirus. Here are the new deaths per day (“daily mortality”) in the USA since March 10, 2020 (note: this is an exponential plot) As bad as that news is,…

## What happens when time sampling density of a series matches its growth

This is the newly updated map of COVID-19 cases in the United States, updated, presumably, because of the new emphasis upon testing: How do we know this is the recent of recent testing? Look at the map of active cases: … Continue reading

Posted in American Association for the Advancement of Science, American Statistical Association, anti-intellectualism, anti-science, climate denial, corruption, data science, data visualization, Donald Trump, dump Trump, epidemiology, experimental science, exponential growth, forecasting, Kalman filter, model-free forecasting, nonlinear systems, open data, penalized spline regression, population dynamics, sampling algorithms, statistical ecology, statistical models, statistical regression, statistical series, statistics, sustainability, the right to know, the stack of lies
1 Comment

## “Code for causal inference: Interested in astronomical applications”

via Code for causal inference: Interested in astronomical applications From Professor Ewan Cameron at his Another Astrostatistics Blog.

Posted in American Association for the Advancement of Science, American Statistical Association, astronomy, astrostatistics, causal inference, causation, counterfactuals, epidemiology, experimental design, experimental science, multivariate statistics, prediction, propensity scoring, quantitative biology, quantitative ecology, reproducible research, rhetorical mathematics, rhetorical science, rhetorical statistics, science, statistical ecology, statistical models, statistical regression, statistics
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## Reanalysis of business visits from deployments of a mobile phone app

Updated, 20th October 2020 This reports a reanalysis of data from the deployment of a mobile phone app, as reported in: M. Yauck, L.-P. Rivest, G. Rothman, “Capture-recapture methods for data on the activation of applications on mobile phones“, Journal … Continue reading

Posted in Bayesian computational methods, biology, capture-mark-recapture, capture-recapture, Christian Robert, count data regression, cumulants, diffusion, diffusion processes, Ecological Society of America, ecology, epidemiology, experimental science, field research, Gibbs Sampling, Internet measurement, Jean-Michel Marin, linear regression, mark-recapture, mathematics, maximum likelihood, Monte Carlo Statistical Methods, multilist methods, multivariate statistics, non-mechanistic modeling, non-parametric statistics, numerics, open source scientific software, Pierre-Simon Laplace, population biology, population dynamics, quantitative biology, quantitative ecology, R, R statistical programming language, sampling, sampling algorithms, segmented package in R, statistical ecology, statistical models, statistical regression, statistical series, statistics, stepwise approximation, stochastic algorithms, surveys, V. M. R. Muggeo
1 Comment

## There’s Big Data, Tiny Data, and now *Dead Data*

You’ve heard of Big Data. You may have heard of Tiny Data. But now, presented in the Harvard Data Science Review, Professor Steve Stigler presents Dead Data See: S. M. Stigler, “Data have a limited shelf life”, Harvard Data Science … Continue reading

Posted in big data, dead data, statistics, tiny data
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## “Tensors in Algebraic Statistics” (Elizabeth Gross)

Professor Elizabeth Gross. Some notes: Segre variety, about (These will be updated as I make progress through the talk.)

Posted in statistics, tensors
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## Review of “No … increase of Carbon sequestration from the greening Earth”

(As promised.) Introduction and Abstract This is a review, re-presentation, and report on the August 2019 article, Y. Zhang, C. Song, L. E. Band, G. Sun, (2019), “No proportional increase of terrestrial gross Carbon sequestration from the greening Earth“, Journal … Continue reading

Posted in adaptation, afforestation, agriculture, agroecology, algal blooms, American Statistical Association, argoecology, being carbon dioxide, biology, Botany, bridge to somewhere, carbon dioxide, carbon dioxide sequestration, chemistry, citizen science, clear air capture of carbon dioxide, climate, climate data, climate disruption, climate economics, climate mitigation, di-nitrogen oxide, ecocapitalism, ecological disruption, Ecological Society of America, ecomodernism, ecopragmatism, environment, evidence, food, forests, fossil fuels, geophysics, Glen Peters, Global Carbon Project, greenhouse gases, James Hansen, John Holdren, p-value, phytoplankton, pollution, population biology, quantitative biology, resource producitivity, scholarship, science education, significance test, statistics, Steven Chu, sustainability, sustainable landscaping, wishful environmentalism
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## “Bayesian replication analysis” (by John Kruschke)

“… the ability to express [hypotheses] as distributions over parameters …” Bayesian estimation supersedes the t-test: (Also by Professor Kruschke.)

## “Ten Fatal Flaws in Data Analysis” (Charles Kufs)

Professor Kufs has a fun book, Stats with Cats, and a blog. He also has a blog post tiled “Ten Fatal Flaws in Data Analysis” which, in general, I like. But the presentation has some shortcomings, too, which I note … Continue reading

## A response to a post on *RealClimate*

(Updated 2342 EDT, 28 June 2019.) This is a response to a post on RealClimate which primarily concerned economist Ross McKitrick’s op-ed in the Financial Post condemning the geophysical community for disregarding Roger Pielke, Jr’s arguments. Pielke, in that link, … Continue reading

Posted in American Association for the Advancement of Science, American Meteorological Association, American Statistical Association, AMETSOC, Bayesian, climate change, ecology, Ecology Action, environment, evidence, experimental design, Frequentist, global warming, Hyper Anthropocene, machine learning, model comparison, model-free forecasting, multivariate statistics, science, science denier, statistical series, statistics, time series
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## Cumulants and the Cornish-Fisher Expansion

“Consider the following.” (Bill Nye the Science Guy) There are random variables drawn from the same kind of probability distribution, but with different parameters for each. In this example, I’ll consider random variables , that is, each drawn from a … Continue reading

## What’s good for each subgroup can be bad for the group: Simpson’s

Why? Simpson’s “paradox” or observation … There’s actually nothing odd about this. While interpretation depends upon the semantics of individual measurements, it should be expected that, at times, improving things for the overall group will mean as a matter of … Continue reading

Posted in abstraction, statistics
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## California Marine Debris Prevention: Banning Plastic Bags is **Not Enough**

NOAA has a full page of videos on marine debris and how to prevent it. The state of California has a 2018 plan on preventing marine debris. Here are some highlights. There is a good deal more in the report, … Continue reading

Posted in American Statistical Association, Life Cycle Assessment, life cycle sustainability analysis, policy metrics, public welfare, shop, shorelines, solid waste, solid waste management, South Shore Recycling Cooperative, spatial statistics, statistical series, statistics, supply chains, sustainability, the right to know, wishful environmentalism
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*Five Thirty Eight* podcast: `Can Statistics solve gerrymandering?`

Great podcast, featuring Professor and geometer Moon Duchin, Nate Silver, and Galen Druke. If the link doesn’t work, listen from here or below: Professor Duchin has written extensively on this: M. Duchin, B. E. Tenner, “Discrete geometry for electoral geography”, … Continue reading

## On bag bans and sampling plans

Plastic bag bans are all the rage. It’s not the purpose of this post to take a position on the matter. Before you do, however, I’d recommend checking out this: and especially this: (Note: My lovely wife, Claire, presents this … Continue reading

Posted in bag bans, citizen data, citizen science, Commonwealth of Massachusetts, Ecology Action, evidence, Google, Google Earth, Google Maps, goverance, lifestyle changes, microplastics, municipal solid waste, oceans, open data, planning, plastics, politics, pollution, public health, quantitative ecology, R, R statistical programming language, reasonableness, recycling, rhetorical statistics, sampling, sampling networks, statistics, surveys, sustainability
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## Repeating Bullshit

Originally posted on Open Mind:

Question: How does a dumb claim go from just a dumb claim, to accepted canon by the climate change denialati? Answer: Repetition. Yes, keep repeating it. If it’s contradicted by evidence, ignore that or insult…

## A look at an electricity consumption series using SNCDs for clustering

(Slightly amended with code and data link, 12th January 2019.) Prediction of electrical load demand or, in other words, electrical energy consumption is important for the proper operation of electrical grids, at all scales. RTOs and ISOs forecast demand based … Continue reading

Posted in American Statistical Association, consumption, data streams, decentralized electric power generation, dendrogram, divergence measures, efficiency, electricity, electricity markets, energy efficiency, energy utilities, ensembles, evidence, forecasting, grid defection, hierarchical clustering, hydrology, ILSR, information theoretic statistics, local self reliance, Massachusetts, microgrids, NCD, normalized compression divergence, numerical software, open data, prediction, rate of return regulation, Sankey diagram, SNCD, statistical dependence, statistical series, statistics, sustainability, symmetric normalized compression divergence, time series
2 Comments

## Series, symmetrized Normalized Compressed Divergences and their logit transforms

(Major update on 11th January 2019. Minor update on 16th January 2019.) On comparing things The idea of a calculating a distance between series for various purposes has received scholarly attention for quite some time. The most common application is … Continue reading

Posted in Akaike Information Criterion, bridge to somewhere, computation, content-free inference, data science, descriptive statistics, divergence measures, engineering, George Sughihara, information theoretic statistics, likelihood-free, machine learning, mathematics, model comparison, model-free forecasting, multivariate statistics, non-mechanistic modeling, non-parametric statistics, numerical algorithms, statistics, theoretical physics, thermodynamics, time series
4 Comments

## Why Americans and Britons work such long hours

Why Americans and Britons work such long hours.

Posted in business, economics, labor, statistics
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*667-per-cm.net*, the Podcast: Episode 2, or Probability is Real.

This is the second installment of the Podcast here, hopefully with better sound quality.

Posted in probability, random walks, statistics
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