Descriptive Statistics

manhattan_rides_df <- read_csv("manhattan_rides.csv")

manhattan_rides_df <-
  manhattan_rides_df %>% 
  mutate(
    day_of_week = factor(day_of_week, ordered = T, 
                         levels = c("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat")), 
    year = factor(year), 
    age_group = factor(age_group, ordered = T,
                       levels = c("18-25","26-35", "36-45", "46-55", "56-65", "66-85")), 
    gender = type.convert(gender, as.is = F))

CitiBike Rides Over the Year

manhattan_rides_df %>% 
  group_by(start_date, year) %>% 
  summarize(obs = n()) %>% 
  ggplot(aes(x = start_date, y = obs, group = year, color = year)) +
  geom_line() + 
  geom_smooth(se = FALSE) +
  labs(title = "Number of CitiBike Rides in 2019 and 2020", x = "Start Date", y = "Number of Rides", col = "Year") + 
  theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust = 1, color = rep(c("black", rep("transparent", each = 10)), 365))) +
  theme(plot.title = element_text(hjust = 0.5))

Overall and as expected, there were more CitiBike rides in 2019 during the equivalent month during the peak of the pandemic in 2020.

Average Ride Length per Month

monthly_Q1 <- quantile(pull(manhattan_rides_df, trip_min), probs = 0.25)
monthly_Q3 <- quantile(pull(manhattan_rides_df, trip_min), probs = 0.75)
monthly_inter_quart <- IQR(pull(manhattan_rides_df, trip_min))

monthly_rides_df <-
  manhattan_rides_df %>% 
    filter(
      trip_min >= monthly_Q1 - 1.5*monthly_inter_quart, 
      trip_min <= monthly_Q3 + 1.5*monthly_inter_quart
    )

monthly_rides_df %>% 
  group_by(year) %>% 
  mutate(
    month = month(starttime, label = T)
  ) %>% 
  plot_ly(
    x = ~month, 
    y = ~trip_min,
    color = ~year,
    type = "box",
    colors = "viridis") %>% 
  layout(
    boxmode = "group",
    title = "Duration of Citibike Rides by Month",
    xaxis = list(title = "Month"),
    yaxis = list(title = "Trip Duration in Minutes")
    )