• Поздняков Иван

• Факультет психологии МГУ (2009 - 2014)

• Когнитивная магистратура НИУ ВШЭ (2014 - 2016)

• Аспирант/стажер-исследователь Института Когнитивных Нейронаук ВШЭ

• В свободное время: Digital Humanities, преподавание

• R с нуля

• R-way

• Практика на данных

• Rmarkdown, ggplot2

• Описательная статистика

• Визуализация данных

• RMarkdown

library(ggplot2)
library(survival)
data(pbc)
g <- ggplot(pbc[complete.cases(pbc),], aes(x = age, y = chol, colour = chol, size = chol))+
  geom_point(alpha = 0.6)+
  scale_color_viridis_c()+
  theme_minimal()

g

plotly::ggplotly(g)

• Layer (geom +)
• Scale
• Coordinate system (coord)
• Faceting (facet)
• Theme
• Defaults
  • Data
  • Mapping

• Data
• Mapping (aes)

“Aesthetics, in the original Greek sense, offers principles for relating sensory attributes (color, shape, sound, etc.) to abstractions.”

• Statistical transformation (stat)
• Geometric object (geom)

"Every geom has a default statistic, and every statistic a default geom ""

• Position adjustment (position)

library("ggplot2")
pie <- ggplot(data = pbc)
pie

pie <- pie +
  geom_bar(width = 1, position = "fill", color = "black", aes(x = "", fill = sex))
pie

pie + coord_polar(theta = "y")

pie + coord_polar(theta = "y")+theme_void()

• http://www.ggplot2-exts.org/gallery/
• cowplot - for publications

• Dynamic visualization
• Using d3.js

library(plotly)
data(diamonds)
diamonds <- diamonds[sample(nrow(diamonds), 1000),]
gg <- ggplot(data = diamonds)+
  geom_point(aes(x = carat, y = price, colour = price), alpha = 0.1)

ggplotly(gg)

plot_ly(diamonds, x = ~carat, y = ~price, color = ~carat, size = ~carat)

http://gallery.htmlwidgets.org/

• leaflet
  
• listviewer
• wordcloud2
• networkD3