I will do professional data analysis with tableau, python and sql
Over deze dienst
I turn your messy data into easy-to-read Tableau dashboards that help you make better business decisions. No matter your industrywhether it's retail, tech, finance, or servicesI take your spreadsheets and turn them into clear, professional charts. I specialize in tracking your most important numbers, finding patterns in customer behavior, and checking if your business changes are actually working. From simple one-page reports to advanced systems that combine information from several different files, I build interactive tools that let you filter and explore your data yourself. You will get a clean, polished dashboard that shows you exactly what is happening in your business at a glance.
Mijn portfolio
Veelgestelde vragen
How do I know which package to buy?
Pick Basic for small files under 40,000 rows. Standard is for mid-sized data up to 100,000 rows in one file. Premium is for large data (>100,000 rows), joining multiple files. the larger and more complicated the data, the more effort it takes to analyze it.
Which file formats do you accept for analysis?
I accept common files like Excel (.xlsx, .xls), CSVs, and text(.txt) files. And although I am open to accept other types of files but you may need to communicate it and may inquire a slight premium.
Do you provide data cleaning as part of the service?
yes. I provide full end to end analysis in all tiers, the differentiating factor is size and complexity of data sets.
Why should I choose your Tableau analysis over your Excel one, when it costs more?
Tableau is more precise because I use Python and SQL to prep data first. This workflow takes more effort than Excel, but it results in a more professional dashboard. Excel is great, but Tableau, python and sql are better for handling larger and more complicated datasets (>100,000 rows).
What is your workflow?
Data Cleaning in Python (pandas) and then querying in either pandas or SQL (postgres) and then visualization in tableau.

