2021-07-28
465 reads
Python
2021-07-21
550 reads
2021-07-07
565 reads
2021-06-09
484 reads
Model Selection and Performance Boosting with k-Fold Cross Validation and XGBoost
This article examines how to split a data set for training and testing and evaluating our model using Python.
2021-05-31
9,756 reads
2021-05-26
426 reads
Dimensionality Reduction Techniques - PCA, Kernel-PCA and LDA Using Python
Summary In this article, we will be looking at some of the useful techniques on how to reduce dimensionality in our datasets. When we talk about dimensionality, we are referring to the number of columns in our dataset assuming that we are working on a tidy and a clean dataset. When we have many columns […]
2021-05-24
4,034 reads
Should You Learn R or Python?
Both Python and R have become very popular languages in the last few years, especially among data professionals. Which should you learn or use? Steve has a few thoughts.
2021-05-21
412 reads
2021-05-12
482 reads
2021-04-28
484 reads
Blogs
PostgreSQL Support in the Data API Builder
By Steve Jones
Next week I’m at VS Live in San Diego (register and join me) and...
Ten Years of PowerShell
Ten years ago today, I filmed a Pluralsight Play by Play on open source...
T-SQL Tuesday #202: 100 Hours
By Steve Jones
It’s time for T-SQL Tuesday again and this is a great prompt to start...
Forums
Stored Procedures for Server-Level Object and Column Search
Comments posted to this topic are about the item Stored Procedures for Server-Level Object...
Databricks Genie Spaces for SQL Analysts: Natural Language Querying Without Leaving Your Data Platform
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The Costs of Multiple Platforms
Comments posted to this topic are about the item The Costs of Multiple Platforms
Question of the Day
RegEx Functions II
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 dylan0@ADVENTURE-WORKS.COM 8 Diane1@ADVENTURE-WORKS.COMIf I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^d') AND BusinessEntityID IN (7,8)See possible answers