Your Linear Regression Need Not Be Linear

Anyone who has ever done a linear regression in R has seen an R formula. R formulae are examples of the Wilkinson notation, sometimes called the Wilkinson-Rogers notation. This same notation is used by other applications including Matlab and Octave to indicate relationships between variables. In most cases, R users have seen the Wilkinson notation […]
Read More ›

Fraudsters Use Padlocks, Too: More on Certificate Use and Abuse

A couple of months I wrote here about HTTPS and website security from a user standpoint. I need to add to that because bad guys can also use the digital certificates that make browsers show green padlocks or avoid notices about unencrypted sites. The issue here is that the certificate that lets a site use […]
Read More ›

Microsoft Office Compatible Productivity Tools on Your Mobile Phone or Tablet

Use Polaris Office to access Microsoft Word, Excel, PowerPoint files on your mobile phone just like you do at your office! Let’s face it a majority of businesses use Microsoft Office productivity tools every day. But one day you find yourself on the road traveling on business without your laptop and you need to access […]
Read More ›

Using .RProfile to Customize your R Environment

When R starts up, it looks for several files to initialize its configuration. R has its own configuration file called Rprofile.site located in the /etc folder. It is probably wise not to mess with this file unless you are very confident in your understanding. Most R users are aware that during startup, R reads an […]
Read More ›

Medical Devices Still Aren’t Secure

Four years ago I wrote about the need to secure medical devices from potential attackers. The problem is still there and the potential for harm is just as great or greater. In October of this year (2018) the US Food And Drug Administration(FDA)’s Office of the Inspector General delivered a report entitled, THE FOOD AND […]
Read More ›

Type to search blog.learningtree.com

Do you mean "" ?

Sorry, no results were found for your query.

Please check your spelling and try your search again.