Dwdm 2.e bit

 Study the arff file format Explore the available data sets in WEKA. Load a 

data set (ex. Weather dataset, Iris dataset, etc.)

ANS:

1. An ARFF (Attribute-Relation File Format) file is an ASCII text file that 

describes a list of instances sharing a set of attributes.

2. ARFF files have two distinct sections – The Header & the Data.

• The Header describes the name of the relation, a list of the attributes, 

and their types.

• The Data section contains a comma separated list of data

Example of student data set creation:

///////////////\\\\\\\\\\\\\\\\\copy from ur notes

Available Datasets in WEKA:

There are 25 different datasets are available in WEKA (C:\Program Files\Weka-3-

8-6\data) by default for testing purpose. All the datasets are available in .arff format.

Those datasets are listed below.

///////////Open program files and

 open weka--data--- and write all the dataset names///////////////