Data Cleaning and Preparation
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About this service
Summary
I clean and prepare datasets for seamless analysis, ensuring accuracy and consistency in your data workflows. Proficient in SQL, Python, and Excel, I automate cleaning processes for efficiency and reliability. My meticulous approach guarantees datasets that are analysis-ready and free of errors.
Process
Initial Assessment: Understand the dataset's purpose and client expectations.
Data Review: Identify inconsistencies, errors, or missing data.
Cleaning: Use tools like SQL or Python for cleaning and validation.
Transformation: Standardize data formats and prepare it for analysis.
Documentation: Create a log of cleaning methods for transparency.
Client Review: Share the cleaned dataset for approval.
Final Delivery: Provide the final, structured dataset along with process documentation.
What's included
Clean and structured datasets
Ready-to-use data, free from errors and inconsistencies.
Automated cleaning workflows
Efficient scripts to save time on repetitive tasks.
Data validation processes
Systems to ensure accuracy and reliability in datasets.
Cleaning methods report
Transparent documentation of steps and outcomes.
Skills and tools
Data Modelling Analyst
Data Scientist
Data Analyst
Data Analysis
Microsoft Excel
pandas
SQL
Tableau