How to open arff file

In this article, we will be learning about ARFF files and how to create ARFF File (Attribute relation File Format)

As the name suggests it described a list of instances sharing a set of attributes.

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Arff file format in weka

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Arff file full form

these files are supported by WEKA machine Learning tool,  arff files are used for the purpose of various operations related to data preprocessing, data cleaning  etc.

Structure of file.

ARFF file contains 2 sections 

1. Header Section
2. Data Section

All the keywords in ARFF file start with @ symbol.

1.

Header Section

This section contains various information related to the dataset like the name of the relation, columns, and type of columns. The header section contains 2 parts Table/relation and attribute part.

@relation :used to give the table name

@attribute: used to give a column name

datatypes:

nominal: represented inside curly brackets (Like constants)

string : data type which accepts only string value

numeric: used to store numbers

date: used to store date

Syntax:

@relation tablename @attribute column_n

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