Andrew Bancroft — Experienced iOS developer, educator, and writer with 15+ years of experience, sharing clear, practical guidance on Swift, SwiftUI, iOS development, and data persistence to help developers succeed.
204 articles from this blog
A tutorial on loading Excel files with Python and Pandas from local directories and URLs.
Learn how to load a CSV file using Python and Pandas from local directories and URLs with practical examples.
A cheat sheet listing Jupyter Notebook keyboard shortcuts for Command and Edit modes.
How to create a SQL Server credential for accessing Azure Blob Storage using PowerShell.
A mnemonic for remembering Type I vs Type II errors in hypothesis testing using a courtroom analogy.
Overview of iOS data persistence options including UserDefaults, Core Data, SQLite, and remote storage solutions.
Explains the meaning and usage of the tilde (~) symbol in R for statistical modeling.
Troubleshooting Azure Stream Analytics sampling issues when no events are found, focusing on JSON formatting for Event Hub data.
Guide to deciphering U-SQL error messages in Azure Data Lake Analytics, covering common failure causes and troubleshooting tips.
Guide to resolving common U-SQL syntax errors caused by capitalization and missing semicolons, especially for T-SQL users.
Learn to use Apple's CloudKit framework for remote data storage, syncing, and sharing in iOS apps with this foundational course.
Explores whether Core Data entities need explicit primary keys, using SQLite debug info to show Core Data handles them automatically.
Explores the benefits of using Apple's CloudKit for remote backend services in mobile app development, comparing it to Firebase and custom backends.
Learn to create an Azure HDInsight cluster using PowerShell, including login, resource group, and storage setup.
Swift cheat sheet for iPhone location services: requesting permission, using CLLocationManager, and implementing delegate methods.
Swift cheat sheet for iPhone camera access: permission requests, camera usage, and handling captured images.
Explores why dimensional modeling remains crucial for business analytics in the big data era, emphasizing data context and user accessibility.
Explains the difference between predictive analytics and machine learning, clarifying their relationship in data analysis.
Troubleshooting SSIS flat file destination error 'Cannot open the datafile' with common causes and fixes.
Explores the linguistic difference between data analysis and data analytics by examining the suffixes -sis, -tic, and -ics.
