Filters in Tableau

Definition Filters in Tableau allow users to control and refine the data displayed in visualizations. Characteristics Basic Filters help limit the data based on user-defined conditions. Types of Filters There are three main types of basic filters used in Tableau :- Dimension Filters Measure Filters Date Filters Dimension Filters This Read more…

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User Interface in Tableau

Tableau provides a user-friendly drag-and-drop interface designed for data visualization and analysis. Below is a breakdown of its key components. Tableau’s intuitive UI makes it easy to analyze data using Sheets, Dashboards, and Stories. The Menu, Toolbar, and Data Window help manage data and create impactful visualizations. Understanding data types Read more…

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Operators in Tableau

Operators in Tableau are used to perform calculations, comparisons, and logical operations within calculated fields and formulas. These operators help in data transformation, filtering, and decision-making. Types of Operators in Tableau Tableau provides General, Arithmetic, Relational, and Logical operators to create powerful calculations and filters in dashboards. They are categorized Read more…

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Built-In Functions in Tableau

Types of Built-In Functions Tableau provides several types of built-in functions that are used to manipulate and analyze data in calculated fields. Tableau functions help in data transformation, calculation, and analysis. These functions are categorized into:- Number Functions (Math operations) String Functions (Text manipulation) Date Functions (Date calculations) Logical Functions Read more…

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Regular Expression in Python

Definition Regular expressions (regex) are a powerful tool in Python that are used for matching desired patterns in strings/text. Features Regular expressions (regex) allow us to search, match, and manipulate strings based on patterns.  We can test our regex patterns using tools like regex101.com. ‘re’ Package/Module Functions  Python provides the ‘re‘ Read more…

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String in Python

Definition In Python, a string is a sequence of characters enclosed within single (‘ ‘), double (” “), or triple quotes (”’ ”’ or “”” “””). Strings are immutable, i.e. they cannot be changed after creation. Strings in Python are powerful and come with many built-in methods for manipulation.  String Read more…

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Configuring a Firewall in Linux

Firewalls are critical for securing Linux systems by controlling incoming and outgoing network traffic based on predefined rules. A firewall is a security system that monitors and controls network traffic. Linux firewalls operate at the kernel level using Netfilter, a packet-filtering framework. Firewalls perform filtering i.e., It blocks or allows Read more…

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