What is data cleaning and why is it important?
Data cleaning is the process of correcting or removing inaccurate records from a dataset. It's crucial because it ensures the quality and reliability of data analysis.
What are some common techniques used in data cleaning?
Common techniques include removing duplicates, handling missing values, correcting inconsistencies, and standardizing formats.
How can I automate the data cleaning process?
You can automate data cleaning using tools like Python libraries (Pandas, NumPy), R, or specialized software like OpenRefine.
What are the consequences of not cleaning data?
Not cleaning data can lead to inaccurate analysis, poor decision-making, and ultimately, financial losses for businesses.
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