How to get started with data visualization
Posted by Armando Brito Mendes | Filed under lições, materiais para profissionais, visualização
Um excelente texto sobre como se tornar um bom artista de visualizações de dados
Sometimes, I get emails asking me “how to get started in data visualization.” Maybe you’re one of the people wondering about that. Maybe you found a book full of data vis in a bookstore, followed somebody who makes data vis on social media, noticed that you love playing with the “charts” feature in Excel, or just really like these data visualizations that newsrooms are creating.
And now you want to create them yourself but don’t know where to get started.
This article tries to give some very practical advice on your next steps. If you ask ten people for that advice, you’ll likely get ten different answers. This is mine:
1 Find out what you like about data visualizations
2 Don’t worry too much about data or tools
3 Start to visualize data
4 Get better at visualizing data
It’s based on the experiences I’ve had and what’s worked for me. I hope some of these ideas will help you to find your own path.
Tags: dados, profissional, visualização
Attitudes towards tipping in the U.S.
Posted by Armando Brito Mendes | Filed under Data Science, estatística, visualização
um exemplo de utilização de pirâmide de idades (com barras acumuladas) noutro contexto
Tipping seems to be in a confusing spot right now. On the one hand, customers want to support workers, but on the other, tip suggestions seem to be rising towards uncomfortable rates and in places where people don’t usually tip. Pew Research surveyed 12,000 U.S. adults to see how we’re all feeling about the current state of tipping.
Tags: barras acumuladas, gorgetas, pirâmide de idades
Most Common Jobs, by Income Group
Posted by Armando Brito Mendes | Filed under Data Science, visualização
Um gráfico de medianas com bolhas
By Nathan Yau
What jobs typically pay over $200,000 in annual salary? What about jobs that pay at least six-figure incomes? These are income ranges for the ten most common jobs at different income levels.
Tags: emprego, gráfico de bolhas, gráfico de medianas
The collapse of insects
Posted by Armando Brito Mendes | Filed under infogramas \ dashboards, visualização
Informações interessantes apresentadas sobre a forma de estória com gráficos originais como o gráfico circular das espécies
The most diverse group of organisms on the planet are in trouble, with recent research suggesting insect populations are declining at an unprecedented rate.
Tags: espécies, gráfico circular, insetos
More pets than children in Taiwan
Posted by Armando Brito Mendes | Filed under infogramas \ dashboards, mapas SIG's, visualização
boa estória com gráficos e animações excelentes
In 2018, Taiwan officially became an “aged society,” a label reserved for populations where 15-20% are 65 years or older. But that’s only the beginning. Taiwan’s on track to reach “super-aged society” status around 2025—that’s when the share of folks 65 or older goes over 20%. This rapid demographic shift makes Taiwan one of the fastest aging countries in the world, the social and economic implications of which will need careful planning and strategic policy to address.
Tags: animações, gráficos, pirâmide de idades
Climate Disasters Drain US Emergency Fund, Adding to Government Shutdown Risk
Posted by Armando Brito Mendes | Filed under infogramas \ dashboards, relatórios, visualização
bons gráficos de barras e de linhas acumulados e várias combinações deste tipo de gráficos
By Rachael Dottle and Leslie Kaufman Green + Politics
29 de setembro de 2023
Devastating fires in Maui and the fierce winds and rain of Hurricane Idalia are just two of the record 23 billion-dollar weather disasters the US has experienced so far this year, leaving little left in the primary government relief fund. Diminished resources combined with a potential shutdown of the federal government could hamper the response to any new disasters later this year.
Due in part to a warming climate, major disasters are increasing in frequency and cost, and federal spending on recovery has grown in step. The principal source of direct federal aid is the Disaster Relief Fund. This major source of individual and public aid managed by the Federal Emergency Management Agency is expected to be exhausted by the end of the fiscal year in September.
Tags: gráfico de barras, gráfico de linhas, gráficos acumulados
Menstrual cycle length and variability: a visual explanation
Posted by Armando Brito Mendes | Filed under Data Science, visualização
uma boa estória, com boas ilustrações animadas e gráficas
A person’s menstrual cycle length and regularity are key indicators of their overall health. The Apple Women’s Health Study (AWHS ) is helping us characterize menstrual cycles throughout people’s lives, by enrolling study participants who provide their permission for us to collect and analyze data on a larger scale than ever before. This understanding can help people prepare for their menstrual cycles and help patients and clinicians personalize their healthcare.
In Part 1: What is a menstrual cycle?, we define and explain key characteristics of a menstrual cycle. In Part 2: How long is a typical cycle?, we explore the range of cycle lengths of people from the study. In Part 3: What is an irregular cycle?, we look at how much a person’s cycle varies from month to month. Finally, in Part 4: What determines cycle characteristics?, we discuss why we see variation in cycle characteristics through a person’s life, and why it’s important for everyone to understand these changes so that we can better prepare for them.
Tags: animação, gráficos, menstruação
Life Expectancy of Pets
Posted by Armando Brito Mendes | Filed under visualização
Bons gráficos de linhas e de intervalos
By Nathan Yau
When getting a pet, you probably don’t want to accidentally sign up for a twenty-year commitment with an impulse adoption. That’s a bad deal for you and the animal. Consider how long potential companions will be around.
Like people, individual life spans can vary based on environment and health, but you can at least get an idea.
Tags: gráficos de linhas, gráico de diferenças
What This Graph of a Dinosaur Can Teach Us about Doing Better Science
Posted by Armando Brito Mendes | Filed under Data Science, estatística, visualização
um texto muito bom sobre visualização de dados
“Anscombe’s quartet” and the “datasaurus dozen” demonstrate the importance of visualizing data
- By Jack Murtagh on September 7, 2023
Mark Twain once wrote, “There are three kinds of lies: lies, damned lies, and statistics.” (He attributed the quip to former British prime minister Benjamin Disraeli, but its true origin is unknown.) Given the foundational importance of statistics in modern science, this quote paints a bleak picture of the scientific endeavor. Thankfully, several generations of scientific progress have proved Twain’s sentiment to be an exaggeration. Still, we shouldn’t discard the wisdom in those words. While statistics is an essential tool for understanding the world, employing it responsibly and avoiding its pitfalls requires a delicate dance.
Tags: gráficos, visualização, visualizações
Causes of Death
Posted by Armando Brito Mendes | Filed under estatística, visualização
Um bom exemplo de utilização de heatmaps
By Saloni Dattani, Fiona Spooner, Hannah Ritchie and Max Roser
What are people dying from?
This question is essential to guide decisions in public health, and find ways to save lives.
Many leading causes of death receive little mainstream attention. If news reports reflected what children died from, they would say that around 1,400 young children die from diarrheal diseases, 1,000 die from malaria, and 1,900 from respiratory infections – every day.
This can change. Over time, death rates from these causes have declined across the world.
