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日期:2019-05-29 11:09

IFN509 Assignment 2: Project

Assignment type: Project (applied)

Topics: Data preparation (cleaning, integration, transformation), data analysis and mining.

Weight: 25%

Group or Individual: You will work on this assignment in groups of two or three. Note that

only a single submission is required from each group, however make sure the report submitted

contains the name and student number of each student in the group.

Due date: Sunday June 2nd, 23:50pm (end of week 13)

Driving question

How does weather affect air quality in Brisbane, Australia?

Data provided :

southbrisbane-aq-2018: Daily weather observations in various cities in Australia from July

2008 until March 20191

.

weatherAUS.csv: South Brisbane (South East Queensland) 2018 hourly air quality and

meteorological data2

.

Analysis required:

a) Investigate whether there are any direct correlations between air quality indicators

and either rain, humidity, wind, or temperatures. Explain what the correlations

mean (you may use visualization if you wish).

b) Use decision trees to see if at least one of the average daily air quality indicators can

be predicted on the basis of any or all of the weather indicators provided. Explain

what patterns the best decision tree highlights.

c) Cluster the days and demonstrate through visualization how the clusters are

organized. Explain what patterns they reveal.


1 Observations were drawn from numerous weather stations. The daily observations are available

from http://www.bom.gov.au/climate/data. Copyright Commonwealth of Australia 2010, Bureau of

Meteorology. Available as a package at https://rattle.togaware.com/weatherAUS.csv

2 Environment and Science, Queensland Government, South Brisbane (South East Queensland) 2018

hourly air quality and meteorological data API, licensed under Creative Commons Attribution

4.0 sourced on 16 May 2019. Available at https://data.qld.gov.au/dataset/air-quality-monitoring-

2018/resource/f28488d1-44fc-4fda-aeff-291039d30f70

Preparing the data:

a) Investigate the quality of the datasets, clean the data where required (address

missing data and outliers). Explain what decisions you made for cleaning the data

and why.

b) Integrate the two provided datasets. You may use manual methods, or external

sources to do so. Explain your approach3

.

c) Provide the final, clean dataset you have used.

Software:

Explain which technology/ies you have chosen to use for this project. Explain the limitations

and benefits of your approach. If you are not using MySQL, R, please consult with the unit

coordinator for approval.

Submission Requirements

You are to submit the following files:

1. Through the Blackboard link: a) CSV files containing your clean data that you used for

analysis (import1.csv, import2.csv etc.) b) Source code. You will need to compress

several files into a .zip file.

2. Through the Turnitin link: An 8 pages (maximum) report which contains the following

sections (report.pdf):

a. Title, Group members (including student numbers)

b. Description of how software was used (1/2 page)

c. Data Summary (quality, cleaning, preparation, integration) (2 pages)

d. Correlations (1 page)

e. Decision Tree (1.5 pages)

f. Clusters (1.5 pages)


3 You can proceed with the rest of the assignment without integrating the two datasets, and only work with

the air quality dataset. If you chose to do so, you will lose marks in the data quality analysis/and data

preparation sections of the marking scheme, but not in other sections.

Marking Scheme

Marking is based only on the report, code and dataset are for verification purposes only. ?

Task Marks Criteria

Explain choice of

technology

3 - The student described the software they used in

the report : The student described how they used

software in the report, and this evidences that the

packages were used effectively (e.g. MySQL might

be used for complex joins, Excel for particular

graphs, R for association analysis, another program

for a bubble plot etc.)

- The student critically reflected on the benefits and

limitations of their chosen approach

Data quality analysis 3 - The student explains and illustrates the steps

required and applied to prepare the dataset.

- Data quality issues are all considered and discussed

appropriately.

Data preparation 4 - The student correctly cleans the data provided so

that the entire set can be imported into a statistical

package for analysis

- The student organizes data in a way that is sensible

for the software they use

- Redundant data is removed

- Data types are correctly applied

- Outliers are removed using a commonly accepted

rule

- Methods for cleaning and outlier exclusion are

described in the report

Visuals/summary for

correlations

2 The student was able to represent the effectively data

to explain.

Correlations 2 The student appropriately identified trends in the data.

Decision tree 2 The decision tree produced supports the analysis

required

Analysis of decision

tree

2 The interpretation of the decision tree is correct and

well explained

Visualisation of

clusters

2 - The visualization provided is effective to illustrate

the nature of the clusters.

- A variety of layers are used appropriately.

Analysis of clusters 2 Appropriate conclusions were drawn based on the

data set.

Presentation 3 - No spelling or grammatical errors were found in

the report

- The report is presented professionally

- Files are appropriately titled


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