There are two steps in this assessment which prepares you for identification and analysis work you are expected to complete throughout this subject. The first task will build the practical and technical skills that will enable you to compare and evaluate output patterns for visualization.
For this first assignment, you are required to install the Weka software, that you will then use throughout the duration of this subject. You will also do some tasks with the Weka software for data preprocessing and visualization.
Load a dataset by clicking the Open file button in the top left corner of the panel. Inside the data folder, which is supplied when Weka is installed, you will find a file named
As shown in the Weka interface, the weather data has 14 instances, and 5 attributes called outlook, temperature, humidity, windy, and play. Click on the name of an attribute in the left subpanel to see information about the selected attribute on the right, such as its values and other details. This information is also shown in the form of a histogram. All attributes in this dataset are “nominal” — that is, they have a predefined finite set of values. The last attribute, play, is the “class” attribute; its value can be yes or no. Answer the following:
Load the dataset in Weka and answer the following questions.
This assessment builds your skills and knowledge towards being able to:
be able to identify and analyse business requirements for the identification of patterns and trends in data sets;
be able to compare and evaluate output patterns;
The grade you receive for this assessment as a whole is determined by the cumulative marks gained for each question. The tasks in this assessment involve a sequence of several steps and therefore you will be marked on the correctness of your answer as well as clear and neat presentation of your diagrams, where required.
Assignments are required to be submitted in either Word format (.doc, or .docx), Open Office format (.odf), Rich Text File format (.rtf) or .pdf format. Each task must be submitted as a single document.
All diagrams that are required should be inserted into the document in the appropriate position.
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