A first look at the Divvy data

Read the data

I wrote a function, read.divvy.data to read the trip and station data from the CSV files. It uses the fread function from the data.table package which is much faster than the read.table function. It also does a few additional data processing steps so that the data are in a format that are easier to work with for our analyses.

divvy <- read.divvy.data()

Reading station data from ../data/Divvy_Stations_2016_Q4.csv.
Reading trip data from ../data/Divvy_Trips_2016_Q1.csv.
Reading trip data from ../data/Divvy_Trips_2016_04.csv.
Reading trip data from ../data/Divvy_Trips_2016_05.csv.
Reading trip data from ../data/Divvy_Trips_2016_06.csv.
Reading trip data from ../data/Divvy_Trips_2016_Q3.csv.
Reading trip data from ../data/Divvy_Trips_2016_Q4.csv.

Session information

sessionInfo()

R version 3.3.2 (2016-10-31)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: macOS Sierra 10.12.5

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

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

other attached packages:
[1] data.table_1.10.4

loaded via a namespace (and not attached):
 [1] backports_1.0.5 magrittr_1.5    rprojroot_1.2   tools_3.3.2    
 [5] htmltools_0.3.6 yaml_2.1.14     Rcpp_0.12.11    stringi_1.1.2  
 [9] rmarkdown_1.6   knitr_1.16      git2r_0.18.0    stringr_1.2.0  
[13] digest_0.6.12   evaluate_0.10.1