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Day: November 14, 2023

Creating Prediction Intervals in R

Steven Sanderson builds a prediction interval:

Prediction intervals are a powerful tool for understanding the uncertainty of your predictions. They allow you to specify a range of values within which you are confident that the true value will fall. This can be useful for many tasks, such as setting realistic goals, making informed decisions, and communicating your findings to others.

In this blog post, we will show you how to create a prediction interval in R using the mtcars dataset. The mtcars dataset is a built-in dataset in R that contains information about fuel economy, weight, displacement, and other characteristics of 32 cars.

Click through to see an example based on linear regression.

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Searching for Tenant Settings in Microsoft Fabric

Wolfgang Strasser does a search:

Another nice feature update for administrators hit Microsoft Fabric – tenant settings got a search box!

Before the this new feature was added to the tenant settings page in October, you had one chance to search for the right tenant setting in the long list – the browser search feature. Just hit CTRL + F and search for i.e. Excel.

This is a quick quality of life improvement.

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Finding Disks Low on Space via dbatools

Volker Bachmann has a script for us:

I will publish short PowerShell scripts with dbatools in loose order that will help with simple tasks or checks on multiple systems.

I would like to start with a script that lists hard drives that have less than a certain percentage of free space left, here 10%.
These are summarized in an email and sent as a list.

Click through for the script, as well as quick German and English explanations.

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Extended Events Updates in Azure SQL DB

Dimitri Furman fills us in on recent happenings:

To better support Extended Events in Azure SQL, in recent months we have made several improvements. Now, you can:

  • View event data in SSMS without downloading xel files from Azure Storage
  • Watch live data for an event session
  • Use the XEvent Profiler
  • Use the histogram target
  • Monitor Extended Events performance
  • Use granular Extended Events permissions

Much of this is already available in the box product. Dimitri also notes some performance improvements and other updates as well.

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Deactivating Pipeline Activities in Microsoft Fabric

Koen Verbeeck shows us a convenient action you can perform in Microsoft Fabric pipelines:

A while ago I had a little blog post series about cool stuff in Snowflake. I’m doing a similar series now, but this time for Microsoft Fabric. I’m not going to cover the basic of Fabric, hundreds of bloggers have already done that. I’m going to cover little bits & pieces that I find interesting, that are similar to Snowflake features or something that is an improvement over the “regular” SQL Server or related products.

In this blog post I’m highlighting the fact we can now deactivate activities in a pipeline

Read on to see how you can do this and what the implications of the action are.

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Relative Performance of Reading Data from Excel Workbooks in Power BI

Chris Webb puts on the lab coat and safety glasses:

Excel workbooks are one of the slowest data sources you can use with Power Query in Excel or Power BI. Reading small amounts of data from small workbooks is usually fast; reading large amounts of data from large workbooks can be very slow. But what about reading small amounts of data from large Excel workbooks? I did some tests and it turns out that performance can vary a lot depending on where your data is in the workbook and how that workbook is structured.

Read on for some interesting findings.

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