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etl_extract.etl_nyctaxi        package:nyctaxi         R Documentation

_E_x_t_r_a_c_t _N_Y_C _T_a_x_i _T_r_i_p _D_a_t_a _f_r_o_m _d_a_t_a _f_r_o_m _N_Y_C _T_a_x_i & _L_i_m_o_u_s_i_n_e
_C_o_m_m_i_s_s_i_o_n

_D_e_s_c_r_i_p_t_i_o_n:

     Extract NYC Taxi Trip Data from data from NYC Taxi & Limousine
     Commission

_U_s_a_g_e:

     ## S3 method for class 'etl_nyctaxi'
     etl_extract(obj, years = as.numeric(format(Sys.Date(),
       "%Y")), months = 1:12, types = "yellow", ...)
     
     ## S3 method for class 'etl_nyctaxi'
     etl_load(obj, years = as.numeric(format(Sys.Date(),
       "%Y")), months = 1:12, types = "yellow", ...)
     
     ## S3 method for class 'etl_nyctaxi'
     etl_transform(obj, years = as.numeric(format(Sys.Date(),
       "%Y")), months = 1:12, types = "yellow", ...)
     
_A_r_g_u_m_e_n_t_s:

     obj: an etl object

   years: a numeric vector giving the years. The default is the most
          recent year.

  months: a numeric vector giving the months. The default is January to
          December.

   types: a character vector giving the type of taxi trip data of
          'yellow'

     ...: arguments passed to 'smart_download' and/or 'green'. The
          default is 'yellow'.

_D_e_t_a_i_l_s:

     extract NYC Yellow taxi trip data from Jan 2009 and Green taxi
     trip data from Aug 2013 data from NYC Taxi & Limousine Commission

     load NYC Yellow taxi trip data from load directory into a sql
     database, the default is a sqlite database and/or 'green'. The
     default is 'yellow'.

     transform NYC Yellow taxi trip data from raw directory to load
     directory and/or 'green'. The default is 'yellow'.

_S_e_e _A_l_s_o:

     'etl_extract'

     'etl_load'

     'etl_transform'

_E_x_a_m_p_l_e_s:

     ## Not run:
     
     taxi <- etl("nyctaxi", dir = "~/Desktop/nyctaxi/")
     taxi %>% 
        etl_extract(years = 2016, months = 1:2, types = c("yellow","green")) %>% 
        etl_transform(years = 2016, months = 1:2, types = c("yellow","green")) %>% 
        etl_load(years = 2016, months = 1:2, types = c("yellow","green")) 
     ## End(Not run)
     


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