Plotting three variables using ggplot

You need to provide a reproducible example:

Like this:

westData <- tibble::tribble(
     ~Category, ~Order.Date, ~Speed,
  "Stationary",  "2010-05-06",      3,
    "Supplies",  "2011-05-06",      5,
  "Technology",  "2014-05-06",      3,
    "Supplies",  "2013-05-06",      2,
  "Stationary",  "2015-05-06",      1
  )

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