FIT5196S22019 assessment 3
This is a group assessment and worth 30 of your total mark for FIT5196.
Due date: 11:55 pm, 7 October 2019. Data Cleansing 60
For this assessment, you are required to write Python Python 23 code to analyze your dataset, find and fix the problems in the data. The input and output of this task are shown below:
Table 1. The input and output of the task
Note1: All files must be zipped into a file named GroupNameass3.zip
Note2: GroupName is to be replaced with your group name exactly as mentioned in the
given datasets example: Group001
Note3: Each group can find their three input files here
Exploring and understanding the data is one of the most important parts of the data wrangling process. You are required to perform graphical andor nongraphical EDA methods to understand the data first and then find the data problems. You are required to:
Detect and fix errors in GroupNamedirtydata.csv
Detect and remove outlier rows in GroupNameoutlierdata.csv
outliers are to be found w.r.t. deliveryfee attribute
Impute the missing values in GroupNamemissingdata.csv
As a starting point, here is what we know about the dataset in hand:
The dataset contains Food Delivery data from a restaurant in Melbourne, Australia. The restaurant has three branches around CBD area. All three branches share the same menu but they have different management so they operate differently.
Each instance of the data represents a single order from said restaurant. The description of each data column is shown in Table 2.
Input
Output
Other Deliverables
GroupNamedirtydata.csv GroupNameoutlierdata.csv GroupNamemissingdata.csv
GroupNamedirtydatasolution.csv GroupNameoutlierdatasolution.csv GroupNamemissingdatasolution.csv
GroupNameass3.ipynb GroupNamerefdiary.pdf GroupNamedecform.pdf
Table 2. Description of the columns
COLUMN
DESCRIPTION
orderid
A unique id for each order
date
The date the order was made, given in YYYYMMDD format
time
The time the order was made, given in hh:mm:ss format
ordertype
A categorical attribute representing the different types of orders namely: Breakfast, Lunch or Dinner
branchcode
A categorical attribute representing the branch code in which the order was made. Branch information is given in the branches.csv file.
orderitems
A list of tuples representing the order items: first element of the tuple is the item ordered, and the second element is the quantity ordered for such item.
orderprice
A float value representing the order total price
customerlat
Latitude of the customer coming from the nodes.csv file
customerlon
Longitude of the customer coming from the nodes.csv file
customerHasloyalty?
A logical variable denoting whether the customer has a loyalty card with the restaurant 1 if the customer has loyalty and 0 otherwise
distancetocustomerKM
A float representing the shortest distance, in kilometers, between the branch and the customer nodes with respect to the nodes.csv and the edges.csv files. Dijkstra algorithm can be used to find the shortest path between two nodes in a graph. Reading materials can be found here.
deliveryfee
A float representing the delivery fee of the order
Notes:
1. The output csv files must have the exact same columns as the input.
2. There is at least one anomaly in the dataset from each category of the data anomalies i.e.,
syntactic, semantic, and coverage.
3. In the file GroupNamedirtydata.csv, a ny row can carry no more than one anomaly. i.e.
there can only be one anomaly in a single row and all anomalies are fixable
4. There are no data anomalies in the file GroupNameoutlierdata.csv, only outliers. Similarly, there are no data anomalies other than missing value problems in the file
GroupNamemissingdata.csv
5. There are three types of meals:
a. Breakfastserved during morning 8am12pm,
b. Lunchserved during afternoon 12:00:01pm4pm
c. Dinnerserved during evening 4:00:01pm8pm
Each meal has a distinct set of items in the menu ex: breakfast items cant be served during
lunch or dinner and so on.
6. A useful python package to solve a linear system of equations is numpy.linalg
7. Delivery fee is calculated using a different method for each branch. The fee depends linearly but in different ways for each branch on:
a. weekend or weekday 1 or 0as a continuous variable
b. time of the day morning 0, afternoon 1, evening 2as a continuous variable
c. distance between branch and customer
If a customer has loyalty, they get a 50 discount on delivery fee
8. The restaurant uses Djikstra algorithm to calculate the shortest distance between customer and restaurant. explore networkx python package for this or alternatively find a way to implement the algorithm yourself
9. As EDA is part of this assessment, no further information will be given publicly regarding the data. However, you can brainstorm with the teaching team during tutorials and consultation sessions.
Methodology 25
The report should demonstrate the methodology including all steps to achieve the correct results.
Documentation 15
The cleaning task must be explained in a wellformatted report with appropriate sections and subsections. Please remember that the report must explain the complete EDA to examine the data, your methodology to find the data anomalies and the suggested approach to fix those anomalies.
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