Monthly Archives: July 2018

Real-time data visualization using R and data extracting from SQL Server

Posted on July 23, 2018 by tomaztsql — 5 Comments

In the previous post, I have showed how to visualize near real-time data using Python and Dash module. And it is time to see one of the many ways, how to do it in R. This time, I will not…

Using Python Pandas dataframe to read and insert data to Microsoft SQL Server

Posted on July 15, 2018 by tomaztsql — 15 Comments

In the SQL Server Management Studio (SSMS), the ease of using external procedure sp_execute_external_script has been (and still will be) discussed many times. But the reason for this short blog post is the fact that, changing Python environments using Conda…

R null values: NULL, NA, NaN, Inf

Posted on July 4, 2018 by tomaztsql — 5 Comments

R language supports several null-able values and it is relatively important to understand how these values behave, when making data pre-processing and data munging. In general, R supports: NULL NA NaN Inf / -Inf NULL is an object and is…

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