---
title: "Types de datasets et types de données"
author: "Antoine Neuraz"
date: "10/30/2019"
output: 
  bookdown::html_document2:
    code_folding: hide
---

# Types de datasets et types de données

## Types de datasets

### Données tabulaires

```{r}

dt <- data.frame(x = rep(1:5, 3), 
           y = c(rep(1,5), rep(2,5),rep(3,5)),
           group = rep(1, 5*3))
dt$group[8] <- 2

ggplot(data = dt, 
       mapping = aes(x = x, y = y, fill = as.factor(group))) +
  geom_tile(color = 'white', size = 2)  +  
  annotate("segment", x=0.2,xend=5,y=3.8,yend=3.8,arrow=arrow(type="closed",length= unit(.4,"cm"))) +
  annotate("segment", x=0.2,xend=0.2,y=3.8,yend=1,arrow=arrow(type="closed",length= unit(.4,"cm"))) + 
  annotate("text", x=3, y=0, label = "Cellule contenant une valeur",hjust=0.5) +
  annotate("segment", x=3,xend=3,y=0.2,yend=1.5,arrow=arrow(type="closed", length= unit(.4,"cm"))) +
  scale_fill_manual(values = list("lightgrey",  "darkred"))+
  scale_x_continuous(position = "top")+
 xlab('Attributs (colonnes)') + 
  ylab('Items (lignes)') +
  theme_modern() +
  theme(legend.position = 'none',
        axis.text=element_blank(),
        axis.line =element_blank()) 

```

### TODO

## Types de données 

### TODO