## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  eval = identical(tolower(Sys.getenv("NOT_CRAN")), "true"),
  out.width = "100%"
)


## ----dict-table, echo = FALSE, message = FALSE--------------------------------
# ---- packages -----------------------------------------------------------
library(knitr)
library(kableExtra)

# ---- data ---------------------------------------------------------------
dic_2000 <- c(
  "Basico", "Domicilio", "Pessoa", "Responsavel", "Instrucao", "Morador"
    )

dic_2010 <- c(
  "Basico", "Domicilio", "Pessoa", "Responsavel", "Entorno",  "ResponsavelRenda", "DomicilioRenda", "PessoaRenda"  
  )

dic_2022 <- c(
  "Basico", "Domicilio", "Pessoas", " ", "Entorno", "ResponsavelRenda", 
  "Indigenas", "Quilombolas", "Obitos", "Preliminares"
  )

# pad the shorter vector with blanks so the columns have equal length
max_len <- max(length(dic_2000), length(dic_2010), length(dic_2022))
dic_2000 <- c(dic_2000, rep("", max_len - length(dic_2000)))
dic_2010 <- c(dic_2010, rep("", max_len - length(dic_2010)))
dic_2022 <- c(dic_2022, rep("", max_len - length(dic_2022)))

tab <- data.frame(`2000` = dic_2000,
                  `2010` = dic_2010,
                  `2022` = dic_2022,
                  check.names = FALSE)

# ---- display ------------------------------------------------------------
kable(tab, escape = FALSE, align = "l") |>
  kable_styling(full_width = FALSE, position = "left")

## ----warning = FALSE----------------------------------------------------------
library(censobr)

dom <- read_tracts(
  year = 2022,
  dataset = 'Domicilio', 
  showProgress = FALSE
  )

names(dom)[c(30:33,119:121, 526:528)]

## ----warning=FALSE, message=FALSE---------------------------------------------
data_dictionary(
  year = 2022, 
  dataset = 'tracts'
  )


## ----warning=FALSE, message=FALSE---------------------------------------------
library(arrow)
library(dplyr)
library(geobr)
library(ggplot2)

## ----warning = FALSE----------------------------------------------------------
muni_bh <- geobr::read_municipality(
  code_muni = 'MG', 
  year = 2010, 
  showProgress = FALSE
  ) |>
  filter(name_muni == "Belo Horizonte")

tracts_sf <- geobr::read_census_tract(
  code_tract = "MG",
  simplified = FALSE,
  year = 2010,
  showProgress = FALSE
  )

tracts_sf <- filter(tracts_sf, name_muni == "Belo Horizonte")

ggplot() + 
  geom_sf(data=tracts_sf, fill = 'gray90', color='gray60') + 
  theme_void()

## ----warning = FALSE----------------------------------------------------------
# download data
tract_entorno <- censobr::read_tracts(
  year = 2022,
  dataset = "Entorno", 
  showProgress = FALSE
  )

# filter observations and calculate indicator
df_trees <- tract_entorno |>
  filter(code_tract %in% tracts_sf$code_tract) |>
  group_by(code_tract) |>
  mutate(total_households = domicilios_V05000,
         trees = domicilios_V05031 + domicilios_V05032+ domicilios_V05033,
         trees_prop = trees / total_households) |>
  select(code_tract, total_households, trees, trees_prop) |>
  collect()

head(df_trees)

## ----warning = FALSE----------------------------------------------------------
bh_tracts <- left_join(tracts_sf, df_trees, by = 'code_tract')

ggplot() +
  geom_sf(data = bh_tracts, aes(fill = trees_prop), color=NA) +
  geom_sf(data = muni_bh, color='gray10', fill=NA) +
  labs(subtitle = 'Share of households with trees in their surroundings.\nBelo Horizonte, 2010') +
  scale_fill_distiller(palette = "Greens", direction = 1, 
                       name='Share of\nhouseholds', 
                       na.value = "gray90",
                       labels = scales::percent) +
  theme_void()


## ----warning = FALSE----------------------------------------------------------
# download data
tract_basico <- censobr::read_tracts(
  year = 2010,
  dataset = "Basico", 
  showProgress = FALSE
  )

tract_income <- censobr::read_tracts(
  year = 2010,
  dataset = "DomicilioRenda", 
  showProgress = FALSE
  )

# select columns
tract_basico <- tract_basico |> select('code_tract','V002')
tract_income <- tract_income |> select('code_tract','V003')

# merge
tracts_df <- left_join(tract_basico, tract_income) |> collect()

# calculate income per capita
tracts_df <- tracts_df |> mutate(income_pc = V003 / V002)
head(tracts_df)

## ----warning = FALSE----------------------------------------------------------
bh_tracts <- left_join(tracts_sf, tracts_df, by = 'code_tract')

ggplot() +
  geom_sf(data = bh_tracts, aes(fill = income_pc), color=NA) +
  geom_sf(data = muni_bh, color='gray10', fill=NA) +
  labs(subtitle = 'Avgerage income per capita.\nBelo Horizonte, 2010') +
  scale_fill_viridis_c(name = "Income per\ncapita (R$)",
                       labels = scales::number_format(),
                       option = 'cividis',
                       breaks = c(0, 500, 1e3, 5e3, 1e4, 2e4),
                       trans = "pseudo_log", na.value = "gray90") +
  theme_void()