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time_lola #46

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686fd98
Create ride_worksheet.rb
ubeninja77 Feb 10, 2020
7bfa72b
Create time_lola.rb
ubeninja77 Feb 10, 2020
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116 changes: 116 additions & 0 deletions ride_worksheet.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,116 @@
Hash.new
drivers_data = {
DR0001: [
{date: "3rd Feb 2016",
rider_id: "RD0003",
cost: 10,
rating: 3},
{date: "3rd Feb 2016",
rider_id: "RD0015",
cost: 30,
rating: 4},
{date: "5th Feb 2016",
rider_id: "RD0003",
cost: 45,
rating: 1}
],
DR0002: [
{date: "3rd Feb 2016",
rider_id: "RD0073",
cost: 25,
rating: 5},
{date: "4th Feb 2016",
rider_id: "RD0013",
cost: 15,
rating: 1},
{date: "5th Feb 2016",
rider_id: "RD0066",
cost: 35,
rating: 3}
],
DR0003: [
{date: "4th Feb 2016",
rider_id: "RD0066",
cost: 5,
rating: 5},
{date: "5th Feb 2016",
rider_id: "RD0003",
cost: 50,
rating: 2}
],
DR0004: [
{date: "4th Feb 2016",
rider_id: "RD0022",
cost: 5,
rating: 5},
{date: "5th Feb 2016",
rider_id: "RD0022",
cost: 10,
rating: 4},
{date: "5th Feb 2016",
rider_id: "RD0073",
cost: 20,
rating: 5}
]
}



# 1. The number of rides each driver has given
drivers_data.each do |driver_id, trips|
puts "Driver #{driver_id}'s total trips: #{trips.length}"
end

# 2. The total amount of money each driver has made
drivers_data.each do |driver_id, trips|
total = 0
trips.each { |trip|
total += trip[:cost]
}
puts "Driver #{driver_id}'s total earnings: $#{total}"
# puts "$#{total} and #{driver_id}"
end

# 3. The average rating for each driver
drivers_data.each do |driver_id, trips|
ratings = 0
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@kaidamasaki kaidamasaki Feb 13, 2020

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Ratings need to use floating point math since we're planning to get an average and want things like 4.67 as an answer.

Because of the way Ruby converts things if you have one floating point value everything winds up floating point so if you start with 0.0 you should get the correct math. (Though note that with floating point math you will want to round before you display things.)

Suggested change
ratings = 0
ratings = 0.0

trips.each { |trip|
ratings += trip[:rating]
}
avg_rating = ratings/trips.length
puts "Average rating for #{driver_id} is: #{avg_rating}"
end

# 4. Which driver made the most money?
most_earned = 0;
driver_info = 0;
drivers_data.each do |driver_id, trips|
total = 0
trips.each { |trip|
total += trip[:cost]
}
if total > most_earned
most_earned = total;
driver_info = driver_id;
end
end

puts "#{driver_info} earned the most money, with a total of $#{most_earned}."

# 5. Calculate and display driver with the highest average rating
highest_avg_rating = 0;
driver_info = 0;
drivers_data.each do |driver_id, trips|
ratings = 0;
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@kaidamasaki kaidamasaki Feb 13, 2020

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You should also use floating point math here. See above.

avg_rating = 0;
trips.each { |trip|
ratings += trip[:rating]
}
avg_rating = ratings/trips.length
if avg_rating > highest_avg_rating
highest_avg_rating = avg_rating;
driver_info = driver_id;
end
end

puts "#{driver_info} was rated the highest, with a average rating of #{highest_avg_rating}."
116 changes: 116 additions & 0 deletions time_lola.rb
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,116 @@
Hash.new
drivers_data = {
DR0001: [
{date: "3rd Feb 2016",
rider_id: "RD0003",
cost: 10,
rating: 3},
{date: "3rd Feb 2016",
rider_id: "RD0015",
cost: 30,
rating: 4},
{date: "5th Feb 2016",
rider_id: "RD0003",
cost: 45,
rating: 1}
],
DR0002: [
{date: "3rd Feb 2016",
rider_id: "RD0073",
cost: 25,
rating: 5},
{date: "4th Feb 2016",
rider_id: "RD0013",
cost: 15,
rating: 1},
{date: "5th Feb 2016",
rider_id: "RD0066",
cost: 35,
rating: 3}
],
DR0003: [
{date: "4th Feb 2016",
rider_id: "RD0066",
cost: 5,
rating: 5},
{date: "5th Feb 2016",
rider_id: "RD0003",
cost: 50,
rating: 2}
],
DR0004: [
{date: "4th Feb 2016",
rider_id: "RD0022",
cost: 5,
rating: 5},
{date: "5th Feb 2016",
rider_id: "RD0022",
cost: 10,
rating: 4},
{date: "5th Feb 2016",
rider_id: "RD0073",
cost: 20,
rating: 5}
]
}



# 1. The number of rides each driver has given
drivers_data.each do |driver_id, trips|
puts "Driver #{driver_id}'s total trips: #{trips.length}"
end

# 2. The total amount of money each driver has made
drivers_data.each do |driver_id, trips|
total = 0
trips.each { |trip|
total += trip[:cost]
}
puts "Driver #{driver_id}'s total earnings: $#{total}"
# puts "$#{total} and #{driver_id}"
end

# 3. The average rating for each driver
drivers_data.each do |driver_id, trips|
ratings = 0
trips.each { |trip|
ratings += trip[:rating]
}
avg_rating = ratings/trips.length
puts "Average rating for #{driver_id} is: #{avg_rating}"
end

# 4. Which driver made the most money?
most_earned = 0;
driver_info = 0;
drivers_data.each do |driver_id, trips|
total = 0
trips.each { |trip|
total += trip[:cost]
}
if total > most_earned
most_earned = total;
driver_info = driver_id;
end
end

puts "#{driver_info} earned the most money, with a total of $#{most_earned}."

# 5. Calculate and display driver with the highest average rating
highest_avg_rating = 0;
driver_info = 0;
drivers_data.each do |driver_id, trips|
ratings = 0;
avg_rating = 0;
trips.each { |trip|
ratings += trip[:rating]
}
avg_rating = ratings/trips.length
if avg_rating > highest_avg_rating
highest_avg_rating = avg_rating;
driver_info = driver_id;
end
end

puts "#{driver_info} was rated the highest, with a average rating of #{highest_avg_rating}."