Raymond Tang
Big Data Engineer, Full Stack .NET and Cross-Platform Software Engineer/Architect
I'm passionate about building data driven, scalable, cloud native applications and products.
Microsoft MVP C#/.NET (2010-2016)/Visual Studio | MCP | MCSE: Data Management and Analytics | Google Cloud Platform Certified Professional Data Engineer | AWS Certified Cloud Practitioner
Articles
.NET Standard for C# 9.0
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In many solutions, .NET standard has been used to share code between .NET Framework and .NET Core projects. Since the release of .NET 5, you probably will think what is the .NET standard version for C# 9 language features. Well, the answer is simple - there is no need to have another version of ...
Get Started on Reunified .NET 5
In May 2019, Microsoft announced the roadmap for .NET in Build conference. .NET 5 is the update that unifies divergent frameworks, reduces code complexity and supports cross-platform reach including desktop, Web, mobile, cloud and device platforms. On 13th September 2020, Microsoft announced .NET ...
C# 9.0 New Features
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.NET 5.0 release candidate 1 (rc.1) was published on 2020-09-14, which marks another big step towards the official .NET 5.0 release. As part of 5.0, C# 9.0 will be released with a bunch of new features. This article summarizes some of the new features with examples. Download .NET 5.0 SDK from this ...
Introduction to C# Interactive
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Python, R and many other scripting languages generally support interactive programming features in their IDEs. When C# was created initially, all C# written programs need to be complied into MSIL first before it can run in .NET runtime environments (unless the code is dynamically complied). ...
Get IP Address in ASP.NET Core 3.x
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This page summarize information about how to retrieve client and server IP address in ASP.NET core applications. Client IP address can be retrieved via HttpContext.Connection object. This properties exist in both Razor page model and ASP.NET MVC controller. Property RemoteIpAddress ...
Statistics with R (Part II)
In article Statistics with R (Part I) , we walked-through the basic statistics calculation using R and also regression models incl. linear regression, multiple regression, logistic regression and Poisson regression. In this part, we will continue to explore more complicated analysis including ...
Statistics with R (Part I)
Till now, we've gone through R programming basics, data types, packages and IDEs, data APIs to work with data sources and various plotting functions. Let's now dive into the most important part about statistics and modelling with R. After all, R was created for statistics. warning Due ...
Plotting with R (Part II)
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In Plotting with R (Part I) , I summarized the functions that can be used in R plotting. In this part, we continue the journey to plot more rich and complex charts like Pie Chart, Bar Chart, BoxPlot, Histogram, Line and Scatterplot using those functions. Pie chart can be drawn using ...
Plotting with R (Part I)
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For data analyst, it is critical to use charts to tell data stories clearly. R has numerous libraries to create charts and graphs. This article summarizes the high-level R plotting APIs (incl. graphical parameters) and provides examples about plotting Pie Chart, Bar ...
Working with Databases and Files in R
R provides rich APIs to interact with source data such as databases and files (CSV, XML, JSON, etc.) With SparklyR, R can also be used to interact with big data platforms like Hadoop. This articles shows examples about using R to load data from relational databases and text files. The ...
