Last updated: 2021-02-16

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Knit directory: TidyTuesday/

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Background

The read.me with instructions, notes, data and data-dictionary is here.

Get the data

plastics <- readr::read_csv('https://raw.githubusercontent.com/rfordatascience/tidytuesday/master/data/2021/2021-01-26/plastics.csv')

Clean up data

  • Remove obvious typos/mistakes:
clean_plastics <- plastics %>%
  dplyr::mutate(parent_company = str_to_title(parent_company),
                country = str_to_title(country)) %>% 
  dplyr::filter(!parent_company %in% c("#Error!", "Unbranded", "null",
                                       "NULL","Null", "Grand Total"),
                !country %in% c("EMPTY"))
  • Remove duplicated rows
clean_plastics2<- clean_plastics %>% 
  split(x = ., f=.$country) %>%
  lapply(function(x){
    x %>% dplyr::arrange(parent_company, desc(grand_total)) %>%
  dplyr::distinct(country, year, parent_company, num_events, volunteers, .keep_all=TRUE)
  }) %>% bind_rows()
  • Replace NAs for plastic collected with 0:
# Get the columns associated with plastics collected 
# and replace NA with 0
clean_plastics3 <- clean_plastics2[, c(4:12)]
clean_plastics3[is.na(clean_plastics3)] <- 0

clean_plastics2[, c(4:12)] <- clean_plastics3

Initial data exploration

Countries’ participation in 2019 and 2020

countries_by_year <- clean_plastics2 %>% 
  dplyr::group_by(country, year) %>% 
  dplyr::summarise(n = n()) %>%
  dplyr::arrange(country, year)
`summarise()` regrouping output by 'country' (override with `.groups` argument)
# 50 countries participated in 2019
countries_2019 <- countries_by_year %>% 
  dplyr::filter(year == 2019) %>%
  as_tibble
countries_2019
# A tibble: 51 x 3
   country       year     n
   <chr>        <dbl> <int>
 1 Argentina     2019   251
 2 Australia     2019     1
 3 Bangladesh    2019    24
 4 Benin         2019     1
 5 Bhutan        2019     4
 6 Brazil        2019   132
 7 Bulgaria      2019    35
 8 Burkina Faso  2019    26
 9 Cameroon      2019   150
10 Canada        2019    24
# … with 41 more rows
# 55 countries participated in 2020
countries_2020 <- countries_by_year %>% 
  dplyr::filter(year == 2020) %>%
  as_tibble 
countries_2020
# A tibble: 53 x 3
   country       year     n
   <chr>        <dbl> <int>
 1 Argentina     2020   224
 2 Australia     2020    67
 3 Bangladesh    2020   141
 4 Benin         2020     1
 5 Brazil        2020    20
 6 Bulgaria      2020    13
 7 Burkina Faso  2020    13
 8 Canada        2020    41
 9 Chile         2020   119
10 China         2020   216
# … with 43 more rows
# 38 countries participated in both years
inner_join(countries_2019,
           countries_2020, 
           by = c("country")) %>% 
  as_tibble()
# A tibble: 39 x 5
   country      year.x   n.x year.y   n.y
   <chr>         <dbl> <int>  <dbl> <int>
 1 Argentina      2019   251   2020   224
 2 Australia      2019     1   2020    67
 3 Bangladesh     2019    24   2020   141
 4 Benin          2019     1   2020     1
 5 Brazil         2019   132   2020    20
 6 Bulgaria       2019    35   2020    13
 7 Burkina Faso   2019    26   2020    13
 8 Canada         2019    24   2020    41
 9 China          2019   605   2020   216
10 Colombia       2019     1   2020    23
# … with 29 more rows

How many parent companies participated per country

companies_by_country_year <- clean_plastics2 %>%
  dplyr::select(country, parent_company) %>%
  dplyr::group_by(country) %>%
  dplyr::summarise(n_companies = n()) %>%
  dplyr::arrange(desc(n_companies))
`summarise()` ungrouping output (override with `.groups` argument)
companies_by_country_year 
# A tibble: 65 x 2
   country                  n_companies
   <chr>                          <int>
 1 Empty                           1267
 2 United States Of America         945
 3 Indonesia                        874
 4 Ukraine                          825
 5 China                            821
 6 Philippines                      818
 7 Vietnam                          802
 8 Nigeria                          683
 9 Hong Kong                        556
10 India                            552
# … with 55 more rows

Visualising the types of plastics collected per country in 2020

grandtotals <- clean_plastics2 %>%
  dplyr::filter(year == 2020) %>%
  dplyr::select(country, grand_total, volunteers) %>%
  dplyr::group_by(country) %>%
  dplyr::summarise(sum = sum(grand_total),
                   sum_volunteers = sum(volunteers))  %>%
  dplyr::mutate(norm_total = sum/sum_volunteers)
`summarise()` ungrouping output (override with `.groups` argument)
clean_plastics2 %>% 
  dplyr::filter(year == 2020) %>%
  dplyr::select(country, parent_company, hdpe, ldpe, o, pet, pp, ps, pvc) %>%
  melt(measure.vars= c("hdpe", "ldpe", "o", "pet", "pp", "ps", "pvc")) %>% 
  dplyr::rename(plasticType = variable) %>%
  dplyr::left_join(grandtotals, by = "country") %>%
  ggplot(aes(x = reorder(country, sum), y = value, fill = plasticType)) +
  geom_bar(stat="identity") +
  coord_flip() +
  scale_fill_brewer(palette="Accent") +
  labs(x = "Number of units", y = "Country")+
  ggtitle("Plastics collected in 2020")

  • And 2019:
grandtotals <- clean_plastics2 %>%
  dplyr::filter(year == 2019) %>%
  dplyr::select(country, grand_total) %>%
  dplyr::group_by(country) %>%
  dplyr::summarise(sum = sum(grand_total))
`summarise()` ungrouping output (override with `.groups` argument)
clean_plastics2 %>% 
  dplyr::filter(year == 2019) %>%
  dplyr::select(country, parent_company, hdpe, ldpe, o, pet, pp, ps, pvc) %>%
  melt(measure.vars= c("hdpe", "ldpe", "o", "pet", "pp", "ps", "pvc")) %>% 
  dplyr::rename(plasticType = variable) %>%
  dplyr::left_join(grandtotals, by = "country") %>%
  ggplot(aes(x = reorder(country, sum), y = value, fill = plasticType)) +
  geom_bar(stat="identity") +
  coord_flip() +
  scale_fill_brewer(palette="Accent") +
  labs(x = "Number of units", y = "Country") +
  ggtitle("Plastics collected in 2019")


sessionInfo()
R version 4.0.3 (2020-10-10)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Mojave 10.14.6

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib

locale:
[1] en_AU.UTF-8/en_AU.UTF-8/en_AU.UTF-8/C/en_AU.UTF-8/en_AU.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] reshape2_1.4.4 dplyr_1.0.2    stringr_1.4.0  magrittr_2.0.1 ggalt_0.4.0   
[6] ggplot2_3.3.2  readr_1.4.0   

loaded via a namespace (and not attached):
 [1] tidyselect_1.1.0   xfun_0.19          purrr_0.3.4        colorspace_2.0-0  
 [5] vctrs_0.3.5        generics_0.1.0     htmltools_0.5.1.1  yaml_2.2.1        
 [9] utf8_1.1.4         rlang_0.4.9        later_1.1.0.1      pillar_1.4.7      
[13] glue_1.4.2         withr_2.3.0        RColorBrewer_1.1-2 lifecycle_0.2.0   
[17] plyr_1.8.6         munsell_0.5.0      gtable_0.3.0       workflowr_1.6.2   
[21] evaluate_0.14      labeling_0.4.2     knitr_1.30         extrafont_0.17    
[25] httpuv_1.5.4       curl_4.3           fansi_0.4.1        Rttf2pt1_1.3.8    
[29] Rcpp_1.0.5         KernSmooth_2.23-17 promises_1.1.1     scales_1.1.1      
[33] farver_2.0.3       fs_1.5.0           proj4_1.0-10       hms_0.5.3         
[37] digest_0.6.27      stringi_1.5.3      ash_1.0-15         grid_4.0.3        
[41] rprojroot_2.0.2    cli_2.2.0          tools_4.0.3        maps_3.3.0        
[45] tibble_3.0.4       crayon_1.3.4       whisker_0.4        extrafontdb_1.0   
[49] pkgconfig_2.0.3    ellipsis_0.3.1     MASS_7.3-53        assertthat_0.2.1  
[53] rmarkdown_2.5      rstudioapi_0.13    R6_2.5.0           git2r_0.27.1      
[57] compiler_4.0.3