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Professor Red Owl, Ph.D.

@profredowl

πŸ¦‰Retired Professor & VP Research Design, Methods & Statistics (now "mentor amoris causa") See http://PhDhelp.redowls.net Reposts & likes β‰  endorsement #statistics #rstats #mixedmethods #researchmethods #PhDhelp #EdDhelp #decisionscience #judgmentanalysis

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29.11.2024
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Latest posts by Professor Red Owl, Ph.D. @profredowl

Artistic portrait of William Oughtred in front of a slide rule. The large X refers to multiplication, not a social media platform

Artistic portrait of William Oughtred in front of a slide rule. The large X refers to multiplication, not a social media platform

#TodayinHistory #dataviz #Onthisday #OTD πŸ“Š
πŸŽ‚Mar 5, 1574 William Oughtred born in Eton, England πŸ‡¬πŸ‡§

~1620: Along with Edmund Gunter, he invented a calculating device with logarithmic & trigonometric scales, an early form of slide rule for mariners.πŸ“

07.03.2026 02:02 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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DOJ refuses to rule out immigration enforcement access to voter data β€œYour honor, I can honestly say I do not know the answer to that,” a DOJ attorney said.

🚨BREAKING: The U.S. Department of Justice (DOJ) would not rule out using voter data for immigration enforcement during a federal hearing in Minnesota, but said such data was not currently being used. www.democracydocket.com/news-alerts/...

06.03.2026 21:07 πŸ‘ 875 πŸ” 436 πŸ’¬ 56 πŸ“Œ 16
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All of our living presidents who still have a sense of decency gathered to honor Rev. Jesse Jackson.

Respect recognizes respect.

06.03.2026 20:18 πŸ‘ 13039 πŸ” 3451 πŸ’¬ 563 πŸ“Œ 146

Some sample nestedLogit plots.

07.03.2026 02:00 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Trump calls on divided GOP to pass SAVE America Act β€˜at the expense of everything else’ Trump suggested the SAVE America Act includes a number of provisions that are not in the proposal.

If you care about free and fair election this November, this is the most important story of the day. www.democracydocket.com/news-alerts/...

06.03.2026 02:23 πŸ‘ 1962 πŸ” 996 πŸ’¬ 70 πŸ“Œ 47
library(tidyplots)

spendings |> 
  tidyplot(x = category, y = amount, color = category) |> 
  add_sum_bar(alpha = 0.2) |> 
  add_sum_dash() |> 
  add_sum_value(accuracy = 1, color = "black") |> 
  adjust_x_axis(rotate_labels = TRUE) |> 
  sort_x_axis_levels()

library(tidyplots) spendings |> tidyplot(x = category, y = amount, color = category) |> add_sum_bar(alpha = 0.2) |> add_sum_dash() |> add_sum_value(accuracy = 1, color = "black") |> adjust_x_axis(rotate_labels = TRUE) |> sort_x_axis_levels()

This is how you can sort the x-axis in #tidyplots 🀩

#rstats #dataviz #phd

06.03.2026 15:43 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Holy shit. It’s time to subpoena Trump! 😑

06.03.2026 02:10 πŸ‘ 2675 πŸ” 1221 πŸ’¬ 192 πŸ“Œ 104
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Free and fair elections are the cornerstone of our democracy. But right now, they’re under attack.

Several Republican-controlled states have redrawn their congressional maps to give themselves an unfair advantage in the midterm elections.

05.03.2026 13:17 πŸ‘ 17906 πŸ” 6291 πŸ’¬ 512 πŸ“Œ 260

So far the war in Iran has cost an estimated $5.5 billion.

That's roughly $1 billion per day.

$41,666,667 per hour.

$11,574 per second.

People do not want this.

They want a living wage. They want healthcare. They want to be able to afford a home. They want their basic needs met.

05.03.2026 17:31 πŸ‘ 18654 πŸ” 7264 πŸ’¬ 795 πŸ“Œ 411
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If union-busting bill passes in the Legislature, Florida workers will be the losers | Opinion This is happening at the very moment when life in Florida is becoming increasingly unaffordable. | Opinion

This Florida Senate Bill harms Florida unions and families. | Miami Herald
www.miamiherald.com/opinion/op-e...

06.03.2026 03:22 πŸ‘ 189 πŸ” 63 πŸ’¬ 8 πŸ“Œ 0
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#rwmentoringmoments Wallflower Wednesday! Be there for the people who need you the most. Read the room and connect with those who need you!!!

04.03.2026 11:56 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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We have learned - the hard way - how launching a reckless war of choice with no clear endgame can put Americans in greater danger.

04.03.2026 14:42 πŸ‘ 2906 πŸ” 660 πŸ’¬ 105 πŸ“Œ 18
library(tidyplots)

my_style <- function(x) {
  x |> 
  adjust_colors(colors_discrete_apple) |> 
  adjust_font(family = "mono", face = "bold") |> 
  remove_x_axis_ticks() |> 
  remove_y_axis_ticks()
}

energy_week |> 
  tidyplot(date, power, color = energy_source) |> 
  add_areastack_relative() |> 
  my_style()

library(tidyplots) my_style <- function(x) { x |> adjust_colors(colors_discrete_apple) |> adjust_font(family = "mono", face = "bold") |> remove_x_axis_ticks() |> remove_y_axis_ticks() } energy_week |> tidyplot(date, power, color = energy_source) |> add_areastack_relative() |> my_style()

This is how you can define a custom style to reuse it across several #tidyplots 🀩

#rstats #dataviz #phd

04.03.2026 15:47 πŸ‘ 11 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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logitr: Fast Estimation of Multinomial and Mixed Logit Models with Preference Space and Willingness-to-Pay Space Utility Parameterizations by John Paul Helveston <p>This paper introduces the logitr R package for fast maximum likelihood estimation of multinomial logit and mixed logit models with unobserved heterogeneity across individuals, which is modeled by a...

Doing a discrete choice experiment for the first time and {logitr} by @jhelvy.bsky.social has saved the day and my sanity. Takes data frames, easy to understand, and crucially, incredibly fast for multinomial logit. We are so lucky that people do this for science and not profit
#rstats #statsky

04.03.2026 02:15 πŸ‘ 19 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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49 Adult Literacy Statistics and Facts for 2026 | National University Explore dozens of recent statistics about U.S. adult literacy and dive into the factors affecting adult literacy rates in America.

''About 130 million U.S. adults (54% of those aged 16–74) read below a sixth-grade level, according to modeled estimates.'' www.nu.edu/blog/49-adul...

See also:
nces.ed.gov/surveys/piaa...
Dataviz: nces.ed.gov/surveys/piaa... #factsmatter #statistics #US #literacylevels

01.03.2026 17:18 πŸ‘ 2 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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#rwmentoringmoments Modern Monday! As important as it is to be current with trends, also know when to make meaningful connections and always show appreciation!

02.03.2026 11:48 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Mentoring Moments with Dr. Rob Wottawa Build effective mentoring programs for teachers and leaders today!

#rwmentoringmoments Episode 11 with Dr. Teresa Grossane! We talk about mentoring, meaningful connections, and math! Available on #Spotify #applepodcasts #amazonmusicand my website: robwottawa.com/podcast

02.03.2026 12:32 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
A large boat is sailing on a body of water

A large boat is sailing on a body of water

U.S. Campuses in Middle East Shutter; Students, Employees Unable to Fly Back

Iran’s retaliation across the Middle East against ongoing U.S. and Israeli bombings has disrupted higher ed in previously calm Gulf states. https://bit.ly/4l8Uolh

#EDUSky #HigherEd #AcademicSky

02.03.2026 23:37 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
library(tidyplots)

new_color_scheme(
  c("#085578","#538085","#faf1e2","#e3baaa","#e47e8c","#ffaa6a"), 
  name = "My custom color scheme")

library(tidyplots) new_color_scheme( c("#085578","#538085","#faf1e2","#e3baaa","#e47e8c","#ffaa6a"), name = "My custom color scheme")

This is how you can generate a custom color scheme in #tidyplots 🌈

#rstats #dataviz #phd

02.03.2026 15:47 πŸ‘ 10 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

only 27% favor this unconstitutional, incoherent and immoral war. 27% is too high but it shows Americans have not lost their minds. Trump has unfortunately.

01.03.2026 21:33 πŸ‘ 667 πŸ” 142 πŸ’¬ 27 πŸ“Œ 5

The costs of this Iran war debacle will likely be more than the cost of extending the ACA health insurance subsidies.

If you asked Americans, which do you want: another war in the Middle East or lower health care costs at home, is the margin 90 to 10? 95 to 5?

01.03.2026 20:34 πŸ‘ 12185 πŸ” 3675 πŸ’¬ 398 πŸ“Œ 110
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for summarising values over groups in plots, I think that generally ridgeplots are superior to box plots and violin plots...
#rstats #statistics #dataviz

27.02.2026 15:17 πŸ‘ 49 πŸ” 10 πŸ’¬ 6 πŸ“Œ 1
library(tidyplots)

study |>
  tidyplot(x = treatment, y = score, color = treatment) |>
  add_mean_dash() |>
  add_sem_errorbar() |>
  add_data_points() |>
  add_test_pvalue(comparisons = list(c(1,3),c(2,4)))

library(tidyplots) study |> tidyplot(x = treatment, y = score, color = treatment) |> add_mean_dash() |> add_sem_errorbar() |> add_data_points() |> add_test_pvalue(comparisons = list(c(1,3),c(2,4)))

This is how you can test selected comparisons in #tidyplots βœ…

#rstats #dataviz #phd

01.03.2026 15:28 πŸ‘ 14 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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β€œA dangerous and unnecessary gamble… recklessness dressed up as resolve…”

28.02.2026 20:59 πŸ‘ 1398 πŸ” 396 πŸ’¬ 46 πŸ“Œ 10

β€œIf Kamala wins, only death and destruction await because she is the candidate of endless wars. I am the candidate of peace. I am peace.” - Trump, 11/1/24

β€œI’m not going to start a war, I’m going to stop wars.” - Trump, 11/5/24

28.02.2026 12:42 πŸ‘ 6627 πŸ” 2056 πŸ’¬ 152 πŸ“Œ 99

One day we will look back and won’t believe what this country let Trump get away with. Nothing can ever be the same after this.

27.02.2026 23:15 πŸ‘ 1242 πŸ” 193 πŸ’¬ 94 πŸ“Œ 17
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01.03.2026 05:12 πŸ‘ 2459 πŸ” 1007 πŸ’¬ 56 πŸ“Œ 38
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Trump ripped up the Iran nuclear deal and created this mess. Now, he's putting servicemembers in harm's way with no clear plan and no Congressional approval. The American people deserve answers β€” and Congress needs to do its job.

28.02.2026 23:11 πŸ‘ 6484 πŸ” 1969 πŸ’¬ 283 πŸ“Œ 67
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Yes!!!!!

#Epstein

#EpsteinFiles

#TrumpEpsteinFiles

28.02.2026 12:45 πŸ‘ 3151 πŸ” 1108 πŸ’¬ 48 πŸ“Œ 26
Chris Murphy speaking to reporters

Chris Murphy speaking to reporters

Murphy: β€œppl now see Trump for who he is β€” a would be dictator who doesn’t care what Americans think, cares nothing about our Constitution or our laws, & sees himself as a kind of 18th century king, with unlimited power to drag all of us into disastrous wars overseas without the consent of the ppl”

28.02.2026 17:09 πŸ‘ 2483 πŸ” 814 πŸ’¬ 133 πŸ“Œ 38