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Errors can be introduced during data collection, processing, or storage, which can degrade the quality of the data.

Posted: Sun Dec 22, 2024 10:32 am
by nusaiba127
integrity of the data. These issues could range from missing values and duplicate records to inconsistencies in data formatting or the presence of outliers.


Data cleaning is often iterative and requires a combination russian mobile list of automated tools and manual interventions. The goal is to ensure that the dataset is accurate, complete, and formatted in a way that it can be used for analysis or further processing. One of the primary challenges in data cleaning is the sheer volume and variety of data that organizations deal with today. Data is often collected from multiple sources, including transactional databases, social media platforms, sensors, surveys, and more.


Each of these sources may have different data formats, structures, and levels of quality, making it difficult to integrate and clean the data. In some cases, data may be incomplete or outdated, leading to gaps or inconsistencies that need to be addressed. A major reason for the need for data cleaning is that raw data collected from various sources is often imperfect.


Some common types of data issues that require cleaning include: Missing Data: One of the most common problems in datasets is missing data, where certain values are absent or