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Day: August 18, 2023

A Primer on Vectors in R

Published 2023-08-18 by Kevin Feasel

Adrian Tam shows off one of the building blocks for R:

R is a language for programming with data. Unlike many other languages, the primitive data types in R are not scalars but vectors. Therefore, understanding how to deal with vectors is crucial to programming or reading the R code. In this post, you will learn about various vector operations in R. Specifically, you will know:

  • What are the fundamental data objects in R
  • How to work with vectors in R

This is often a little tricky for newcomers to the language to pick up, though if you’re already familiar with set-based operations in SQL, vector-based operations are fairly straightforward.

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Data Pre-Processing in R

Published 2023-08-18 by Kevin Feasel

Amieroh Abrahams cleans up some data:

As data scientists, we often find ourselves immersed in a vast sea of data, trying to extract valuable insights and hidden patterns. However, before we embark on the journey of data analysis and modeling, we must first navigate the crucial steps of data cleaning and preprocessing. In this blog post, we will explore the significance of data cleaning and preprocessing in data science workflows and provide practical tips and techniques to handle missing data, outliers, and data inconsistencies effectively.

Read on for several tactics which can help you clean up your data.

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Naming Artifacts in Microsoft Fabric

Published 2023-08-18 by Kevin Feasel

Johnny Winter shares some advice:

With Fabric being a unified platform, the worlds of Power BI Developer and Data Engineer collide. So is a solid naming convention a good idea?

At Advancing Analytics, we say yes.

In fact, given the breadth of the platform and the variety of artifacts available for use in Fabric, it becomes even more important to have a strategy to be able to organise these items and make them quick and easy to identify.

Read on to see what Johnny recommends.

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Private Endpoints and Azure SQL Managed Instance

Published 2023-08-18 by Kevin Feasel

Zoran Rilak begins a new series:

Last week we announced the general availability (GA) of private endpoints for Azure SQL Managed Instance. Today, we bring you examples of private endpoints in practical scenarios, starting from the basics and building to the more complex ones to follow in the second installment of this mini-series.

In this post, we’ll cover the following scenarios:

  1. Accessing SQL MI from another virtual network
  2. A more secure kind of public access
  3. Accessing SQL MI from your premises
  4. Making SQL MI available to managed Azure services

Click through to see these four scenarios at the architecture diagram level.

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ALTER TABLE SWITCH and Errors 4907, 4908, and 4912

Published 2023-08-18 by Kevin Feasel

Eitan Blumin works out some problems:

When it comes to managing tables and indexes in SQL Server, the ALTER TABLE SWITCH statement is a powerful tool for “moving” data swiftly between tables. However, this convenience can sometimes be met with frustrating roadblocks, such as errors 4907 and 4908.

These errors may be confusing about their underlying cause, particularly when the source and target tables have identical partitions, including in non-clustered indexes.

Read on to see what these error messages mean and how you can correct them.

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Fallback Fonts in Power BI and Deneb Visuals

Published 2023-08-18 by Kevin Feasel

Meagan Longoria gets a request:

This week, I was working with a client who requested I use the Segoe UI font in their Power BI report. The report contained a mix of core visuals and Deneb visuals. I changed the fonts on the visuals to Segoe UI and published the report. But my client reported back that they were seeing serif fonts in some visuals. I couldn’t replicate this on my machine while viewing the report in a web browser or in Power BI Desktop.

Read on to see what the problem was, as well as the workaround.

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