加载经常用的R包

## Parsed with column specification:
## cols(
##   week_ending = col_date(format = ""),
##   week_number = col_double(),
##   weekly_gross_overall = col_double(),
##   show = col_character(),
##   theatre = col_character(),
##   weekly_gross = col_double(),
##   potential_gross = col_logical(),
##   avg_ticket_price = col_double(),
##   top_ticket_price = col_logical(),
##   seats_sold = col_double(),
##   seats_in_theatre = col_double(),
##   pct_capacity = col_double(),
##   performances = col_double(),
##   previews = col_double()
## )
## Warning: 71078 parsing failures.
##  row              col           expected actual                      file
## 6862 potential_gross  1/0/T/F/TRUE/FALSE 383843 '../H_ggplo2/grosses.csv'
## 6862 top_ticket_price 1/0/T/F/TRUE/FALSE 50     '../H_ggplo2/grosses.csv'
## 6885 potential_gross  1/0/T/F/TRUE/FALSE 383843 '../H_ggplo2/grosses.csv'
## 6885 top_ticket_price 1/0/T/F/TRUE/FALSE 50     '../H_ggplo2/grosses.csv'
## 6909 potential_gross  1/0/T/F/TRUE/FALSE 383843 '../H_ggplo2/grosses.csv'
## .... ................ .................. ...... .........................
## See problems(...) for more details.
## # A tibble: 6 x 14
##   week_ending week_number weekly_gross_ov~ show  theatre weekly_gross
##   <date>            <dbl>            <dbl> <chr> <chr>          <dbl>
## 1 2010-01-03           32         28089915 A Li~ Walter~      1031543
## 2 2010-01-03           32         28089915 A Vi~ Cort T~       601729
## 3 2010-01-03           32         28089915 Bill~ Imperi~      1663895
## 4 2010-01-03           32         28089915 Burn~ Longac~       594252
## 5 2010-01-03           32         28089915 Bye ~ Henry ~       667496
## 6 2010-01-03           32         28089915 Chic~ Ambass~       888536
## # ... with 8 more variables: potential_gross <lgl>, avg_ticket_price <dbl>,
## #   top_ticket_price <lgl>, seats_sold <dbl>, seats_in_theatre <dbl>,
## #   pct_capacity <dbl>, performances <dbl>, previews <dbl>
## Selecting by totalgross
## # A tibble: 82 x 10
## # Groups:   show [10]
##    show   year year_gross potential_gross avg_ticket_price top_ticket_price
##    <chr> <dbl>      <dbl>           <int>            <dbl>            <dbl>
##  1 Alad~  2014  59050162               NA             98.9             98.9
##  2 Alad~  2015  78948527               NA            113.             113. 
##  3 Alad~  2016  78207510.              NA            111.             111. 
##  4 Alad~  2017  81950158.              NA            113.             113. 
##  5 Alad~  2018  75716100.              NA            107.             107. 
##  6 Alad~  2019  73851144.              NA            105.             105. 
##  7 Beau~  2013   4271877               NA            109.             109. 
##  8 Beau~  2014  58110271               NA            140.             140. 
##  9 Beau~  2015  51701954               NA            132.             132. 
## 10 Beau~  2016  45689407.              NA            117.             117. 
## # ... with 72 more rows, and 4 more variables: seats_sold <dbl>,
## #   seats_in_theatre <dbl>, performances <dbl>, previews <dbl>