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Visualização de Dados com o R: Aplicações para Finanças e Economia

Visualização de Dados com o R: Aplicações para Finanças e Economia

          
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About the Book

Visualização de dados é a arte de transformar medidas em padrões visuais. O objetivo é incrivelmente simples, apresentar evidências de um evento ou causalidade do mundo real. E, como qualquer arte, é fácil de descrever e difícil de executar.

Na prática, construir figuras baseadas em dados exige expertise da área de conhecimento, uma noção de design e conhecimento das ferramentas corretas de programação. O retorno para o autor, porém, é imenso. Em um mundo digitalizado, gráficos baseados em dados são compartilhados com o mundo inteiro em questões de segundos, ao clique de um botão.

Conteúdo do livro

Este livro é uma extensão da minha outra obra, Análise de Dados Financeiros e Econômicos com o R. Aqui escrevo sobre tudo aquilo que aprendi sobre visualização de dados em mais de doze anos de carreira como professor, pesquisador e consultor da área de finanças e economia. O conteúdo do livro percorre sobre os seguintes pontos:

  • Princípios e componentes: Nos capítulos 02 e 03 discutiremos princípios e componentes visuais de um gráfico de dados. Esta é a parte onde a teoria encontra a prática.
  • Visualização de Dados com o R: No capítulo 04 discutiremos o uso do R e módulo ggplot2 para a criação de gráficos baseados em dados. Aprenderemos sobre o sistema de camadas do ggplot2, adição de elementos textuais, canais de visualização e, por fim, exportação de figuras.
  • Gráficos estatísticos: O capítulo 05 apresenta o uso do ggplot2 para a criação de gráficos estatísticos incluindo histogramas, densidades, gráficos boxplot, gráficos QQ e análise de correlação
  • Mapas: O capítulo 05 apresenta o ecossistema de módulos do R para a criação de mapas geográficos, incluindo a importação de dados cartográficos do IBGE e Google maps.
  • Programação com o ggplot2: No capítulo final aprenderemos a automatizar tarefas cotidianas na criação de figuras baseadas em dados, tal como o uso de funções para a criação e exportação serializada de figuras com diferentes temas e paletas de cores.

Todo o material do neste livro, incluindo gráficos e código, é aberto ao público e reproduzível. Para facilitar a importação dos dados, construí um módulo do R chamado vdr, o qual pode ser instalado de forma prática e fácil. Este pacote contém todos os dados e funções usados no livro. Com ele será possível importar dados para a sua sessão do R e rodar todos os exemplos no seu próprio computador.


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Product Details
  • ISBN-13: 9798849109626
  • Publisher: Amazon Digital Services LLC - Kdp
  • Publisher Imprint: Independently Published
  • Height: 254 mm
  • No of Pages: 212
  • Spine Width: 11 mm
  • Weight: 376 gr
  • ISBN-10: 8849109628
  • Publisher Date: 21 Oct 2022
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Sub Title: Aplicações para Finanças e Economia
  • Width: 178 mm


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