https://www.tonyhavlicek.com/portfolio daily 0.75 2026-07-17 https://www.tonyhavlicek.com/portfolio/event-driven-car-loan-planner-turning-a-first-car-loan-into-a-lesson-in-financial-discipline monthly 0.5 2026-07-17 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/3087272a-817e-4207-ae6c-33fc18d47a50/README.png Portfolio - Event-Driven Car Loan Planner: Turning a First Car Loan into a Lesson in Financial Discipline - Make it stand out Every project benefits from strong documentation. The README introduces the workbook's purpose, explains the underlying financial model, defines key metrics, and provides clear instructions so users can confidently navigate the workbook and understand the calculations behind it. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/f0058d4f-4677-4cea-b4f6-ffb4ebac4dbf/Dashboard.png Portfolio - Event-Driven Car Loan Planner: Turning a First Car Loan into a Lesson in Financial Discipline - Make it stand out The dashboard provides an executive summary of the loan strategy by combining key performance indicators, projected interest savings, payment milestones, and visual trends into a single view. By comparing the baseline payoff strategy with actual payment activity, users can quickly monitor progress, evaluate financial outcomes, and make informed payment decisions. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/9bee4436-80cf-45af-9de4-b1aaa250daec/inputs.png Portfolio - Event-Driven Car Loan Planner: Turning a First Car Loan into a Lesson in Financial Discipline - Make it stand out The Inputs worksheet serves as the workbook's configuration hub, allowing users to define loan parameters, review verified servicing rules, and establish a baseline payoff strategy. Separating assumptions from calculations improves transparency, flexibility, and maintainability while allowing the entire workbook to update dynamically as inputs change. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/8796388a-35de-4192-98ab-cc4ee5125ed9/Planned+Events.png Portfolio - Event-Driven Car Loan Planner: Turning a First Car Loan into a Lesson in Financial Discipline - Make it stand out The Planned Events worksheet serves as the workbook's financial modeling engine, calculating daily simple interest, payment allocation, principal reduction, and ending balances for the baseline 12-month payoff strategy. By modeling each payment as a separate financial event, the workbook provides a transparent and flexible framework for analyzing interest savings and supporting downstream reporting and forecasting. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/65479b35-0639-48c6-a230-1dc64f60652d/Actual+Event+Log.png Portfolio - Event-Driven Car Loan Planner: Turning a First Car Loan into a Lesson in Financial Discipline - Make it stand out The Actual Event Log captures real payment activity as it occurs, recording payment dates, amounts, and due dates covered while automatically recalculating interest, principal reduction, and remaining loan balance. By separating planned payments from actual payment activity, the workbook provides a flexible framework for tracking progress, measuring payment performance, and supporting accurate forecasting. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/076f8277-21c1-4ca7-b7a3-8b022831a3a0/Forecast+Engine.png Portfolio - Event-Driven Car Loan Planner: Turning a First Car Loan into a Lesson in Financial Discipline - Make it stand out The Forecast Engine extends the workbook beyond traditional loan calculators by projecting the remaining repayment schedule, payoff date, and lifetime interest after each actual payment event. Starting from the latest recorded loan position, it dynamically recalculates future payments and quantifies the long-term financial impact of payment timing and amounts. https://www.tonyhavlicek.com/portfolio/from-chaos-to-clarity-cleaning-real-world-data-in-excel monthly 0.5 2025-06-20 https://www.tonyhavlicek.com/portfolio/ev-population-analytics-part-1 monthly 0.5 2025-06-08 https://www.tonyhavlicek.com/portfolio/ev-population-analytics-part-2 monthly 0.5 2025-06-08 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/9c8de09d-304c-46a1-b49d-dd2c88d86b92/Tesla_vs_Other_EV_Makers_Washington_Market_Share.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 1: What is Tesla’s market share in Washington vs. other EV manufacturers? ANSWER: As of April 2025, Tesla makes up approximately 42.9% of all registered electric vehicles in Washington State. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/205cbfad-0468-4c88-9069-987b2a05f245/Top_Selling_Tesla_Models_in_Washington.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 3: Which Tesla models are most popular? ANSWER: The Model Y is the most registered Tesla in Washington, followed by the Model 3. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/38b1fc21-64d1-46e2-afe9-0f14b88dc1f3/Average_MSRP_%28BEV%29.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 5: How does Tesla’s pricing compare to other BEVs? ANSWER: Tesla's average MSRP is higher than that of other BEV brands in the dataset. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/889a84e7-225b-4e23-ab94-8333cce753d6/PHEV_vs_BEV_Trends_Over_Time.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 7: What are the trends in vehicle type over time? ANSWER: Battery Electric Vehicle (BEV) registrations increased through 2023, followed by a decline in 2024. Plug-in Hybrid Electric Vehicle (PHEV) registrations remained stable until 2023, then began to decline in 2024. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/53a7630d-ebe1-430b-a005-ec0541ed9d57/Tesla_Vehicles_Sold_by_Year_in_Washington.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 2: What is the trend in Tesla vehicles sold each year in Washington? ANSWER: Tesla registrations in Washington increased steadily from 2011 through 2023, peaking around 2023, followed by a decline in 2024. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/e0e096f8-8bb3-43e0-9c9d-edd0e8ee4384/Estimated_Revenue_Per_Model.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 4: Which Tesla models generate the most estimated revenue in Washington? ANSWER: The Model Y generates the highest estimated revenue among electric vehicles in Washington, with the Model 3 coming in second. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/436028ba-5f90-4fb1-b80b-82a8aae8dafc/Average_Electric_Range_%28BEV%29.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 6: How does Tesla's electric range compare to other BEVs? ANSWER: Tesla vehicles have a higher average electric range than other battery electric vehicles (BEVs), based on the values shown. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/3e46ac36-d978-4a58-bdae-e3cccfd7f433/Top_5_Utilities_in_Washington.png Portfolio - Part 2: Visualizing the Washington EV Market - Make it stand out QUESTION 8: Which electric utilities support the most Teslas? ANSWER: The top five utilities are: Puget Sound Energy of Tacoma, Puget Sound Energy Inc, City of Seattle, Bonneville Power Administration Pud 1, and Bonneville Power Administration city of Tacoma. https://www.tonyhavlicek.com/portfolio/new-music-video-hb2gl-xd675 monthly 0.5 2025-06-23 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/0d82a571-fd36-4549-9c4b-d311d783067f/Yearly_Debt_Percentage_Increase.jpg Portfolio - US Debt Analysis & Forecasting - Make it stand out Summary: From 2016 to 2019, the Total Public Debt Outstanding increased at an average rate of approximately 5% per year. In 2020, there was a significant spike, likely driven by the U.S. government's pandemic response measures. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/c48abb36-3bd1-47ff-bbc1-f0ac811546e8/Monthly_Average_Total_Debts.jpg Portfolio - US Debt Analysis & Forecasting - Make it stand out Summary: Historically, the largest increases in debt occur in January, February, November, and December. In contrast, the lowest increases typically happen in April, May, June, and July. Hypothesis: During months with high debt increases, major U.S. holidays such as Thanksgiving, Christmas, and New Year’s lead to increased consumer spending, particularly on gifts. As a result, people may take on more debt during these months. Conversely, during months with lower debt increases, the absence of major holidays reduces consumer spending, leading to less borrowing. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/c524a7aa-1556-408a-9ba7-51f10575bfa2/Projected_Publicly_Held_Debt.jpg Portfolio - US Debt Analysis & Forecasting - Make it stand out Summary: From 1997 to 2007, publicly held debt increased by approximately $1 trillion. From 2008 to 2019, debt rose from $6 trillion to $17 trillion. From 2020 to 2022, debt increased from $21.5 trillion to $25 trillion. From 2023 to 2027, publicly held debt is projected to reach $33 trillion. Conclusion: Publicly held debt is projected to continue rising significantly over the next five years. Potential factors influencing debt growth include trends in the stock market, housing market, credit card debt levels, and unemployment rates. https://www.tonyhavlicek.com/portfolio/new-music-video-hb2gl-5ebhy-sjgsf monthly 0.5 2025-06-10 https://www.tonyhavlicek.com/portfolio/new-music-video-hb2gl-5ebhy monthly 0.5 2025-06-10 https://www.tonyhavlicek.com/portfolio/collaboration-with-dj-13-57pdt monthly 0.5 2025-06-23 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/1747711968663-4W9ZEG47C5QH47F26A3Z/Blog+Post+-+Bus+Breakdown+and+Delays+in+NYC+%28featured+post%29.jpg Portfolio - Breakdowns, Bottlenecks & Buses: A Data-Driven Look at NYC School Transit Delays - Make it stand out Findings: The majority of breakdowns are due to mechanical issues, including instances where buses "won't start," which also appears to be a mechanical problem. Recommendation: Increase preventative maintenance to reduce mechanical failures. Consider scheduling bus servicing on a monthly or quarterly basis. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/9783c18c-ccea-4597-9f17-027d027a05d9/Reasons_for_Delays.jpg Portfolio - Breakdowns, Bottlenecks & Buses: A Data-Driven Look at NYC School Transit Delays - Make it stand out Findings: The primary cause of delays is due to traffic. Potential Solution: Adjust bus routes and/or pickup times to mitigate traffic-related delays. Note: Nearly 14,000 delays are due to mechanical issues. Implementing a preventative maintenance schedule will help reduce instances of buses running late. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/664904ca-a40d-4865-8e1b-f8baef0b0f99/Largest+Delay+Times+for+Bus+Companies.jpg Portfolio - Breakdowns, Bottlenecks & Buses: A Data-Driven Look at NYC School Transit Delays - Make it stand out Findings: These are the top ten companies with the highest delay times. Recommendation: Use this data to compare the number of delays, boroughs, and total number of trips. Note: Implementing a preventative maintenance schedule could help reduce delay times. Additionally, consider whether replacing the bus company with a more reliable option is necessary. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/030bb678-061e-4142-9eac-5568fed47176/Longest+Delay+Times+for+Borough.jpg Portfolio - Breakdowns, Bottlenecks & Buses: A Data-Driven Look at NYC School Transit Delays - Make it stand out Findings: The boroughs with the longest delays are in the main areas of New York City, where the highest concentrations of people and vehicles contribute to prolonged wait times. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/1fe3931b-46d8-4927-bd37-c42bafd2de0b/Delays.jpg Portfolio - Breakdowns, Bottlenecks & Buses: A Data-Driven Look at NYC School Transit Delays - Make it stand out Findings: The largest number of delays occur on Mondays, with a significant decrease by Friday. Conclusion: Since most delays are caused by traffic, we can infer that the decline on Fridays is due to fewer people commuting to work or driving. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/47138390-41c6-4fb9-bcda-af335ff02d54/Breakdowns.jpg Portfolio - Breakdowns, Bottlenecks & Buses: A Data-Driven Look at NYC School Transit Delays - Make it stand out Findings: There is a gradual decrease in breakdowns throughout the week, with a higher percentage occurring on Monday and declining as the week progresses. Recommendations: Schedule maintenance over the weekends to reduce breakdowns. https://www.tonyhavlicek.com/portfolio/new-single-out-now-asyx2 monthly 0.5 2025-06-11 https://www.tonyhavlicek.com/portfolio/european-tour-rlya9 monthly 0.5 2025-06-17 https://www.tonyhavlicek.com/portfolio/west-coast-tour-7bsfp monthly 0.5 2025-06-17 https://www.tonyhavlicek.com/portfolio/5-shows-new-york-city-p6fzm monthly 0.5 2025-06-15 https://www.tonyhavlicek.com/portfolio/new-music-video-hb2gl monthly 0.5 2025-06-16 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/8e3400f6-6d8b-45c1-b4c8-d635efd12edd/Highest+Average+Income.jpg Portfolio - US Household Income - Data Cleaning & Exploratory Analysis - Make it stand out QUESTION 1: Which five U.S. states, districts, or territories have the highest average household income? ANSWER: See SQL query output in the image above. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/7e5c79ed-7742-4026-9ea4-c8be83777267/Ten+Largest+States+by+Land+Area.jpg Portfolio - US Household Income - Data Cleaning & Exploratory Analysis - Make it stand out QUESTION 3: What are the top 10 largest states by land area? ANSWER: See SQL query output in the image above. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/150086d3-fa20-4256-93ca-8f08aecd552c/Lowest+Average+Income.jpg Portfolio - US Household Income - Data Cleaning & Exploratory Analysis - Make it stand out QUESTION 2: Which five U.S. states, districts, or territories have the lowest average household income? ANSWER: See SQL query output in the image above. https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/f3ae8e7f-4b6e-43e6-8cb5-5de7858e2f10/Ten+Largest+States+by+Water+Area.jpg Portfolio - US Household Income - Data Cleaning & Exploratory Analysis - Make it stand out QUESTION 4: What are the top 10 largest states by water area? ANSWER: See SQL query output in the image above. https://www.tonyhavlicek.com/portfolio/category/R monthly 0.5 https://www.tonyhavlicek.com/portfolio/category/Excel monthly 0.5 https://www.tonyhavlicek.com/portfolio/category/Power+BI monthly 0.5 https://www.tonyhavlicek.com/portfolio/category/Tableau monthly 0.5 https://www.tonyhavlicek.com/portfolio/category/SQL monthly 0.5 https://www.tonyhavlicek.com/resume daily 0.75 2026-06-13 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/faabccf2-ea03-4f72-b14e-a45534122582/White+Right+Pointing+Arrow.png https://www.tonyhavlicek.com/about daily 0.75 2025-06-25 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/3827f8fa-1207-487c-9a5d-79a0b0d2f0c7/052.jpg https://www.tonyhavlicek.com/contact daily 0.75 2025-06-25 https://www.tonyhavlicek.com/certifications daily 0.75 2025-06-25 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/6d8bbf49-28c4-4980-9348-3b5b7fd10591/Anthony+Havlicek+-+R+Programming+for+Data+Analysts+Certificate.png Certifications https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/9dbf1fd9-f16f-4c1a-a2eb-0d3358d76600/Anthony+Havlicek+-+Microsoft+Power+BI+Desktop+for+Business+Intelligence+Certificate.png Certifications https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/ca4a9493-98ce-46b3-bcf9-a4798c5d1b7e/Anthony+Havlicek+-+MySQL+for+Data+Analytics+Certificate.png Certifications https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/ba4ed27b-1a9e-4e52-ab47-83ab077d6ba6/Anthony+Havlicek+-+Excel+for+Data+Analytics+Certificate.png Certifications https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/099f0798-d3d2-446e-8455-0f43b505b161/Anthony+Havlicek+-+Tableau+for+Data+Visualization+Certificate.png Certifications https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/14d23114-34d6-4937-9137-34d1877b7090/Google+Data+Analytics+Certificate.jpg Certifications https://www.tonyhavlicek.com/home daily 1.0 2025-06-25 https://images.squarespace-cdn.com/content/v1/65345baeba61ae35023ef24a/1fbf83bf-fd32-4b4a-b91b-0ae4b19baae3/Brain+Tools.png