Stories by Sharon Machlis

Tableau 9.0 beta rolls out

Tableau will showcase beta version 9.0 of its data visualization and analysis software to a large group of customers today, touting features that include drag-and-drop analytics as well as data-preparation features that formerly had to be done outside the application.

IoT's dark side: Hundreds of unsecured devices open to attack

A self-described security "amateur" discovered hundreds of Internet-connected devices ranging from cameras to industrial control systems that were connected to the Internet without even basic password protection - meaning they could be easily turned on and off or otherwise manipulated with a single click of a mouse.

5 tips for data manipulation in Excel

If you work with data much, you don't need a statistical model to predict that the odds of consistently getting data in the format you need for analysis are pretty low. Those who do a great deal of data cleaning and reformatting often turn to scripting languages like Python or specialty tools such as OpenRefine or R.

R resources at Computerworld

From a beginner's guide to data-wrangling how-to and searchable collection of additional tutorials and videos, we've got you covered.

60+ R resources to improve your data skills

This list was originally published as part of the Computerworld Beginner's Guide to R but has since been expanded to also include resources for advanced beginner and intermediate users. If you're just starting out with R, I recommend first heading to the Beginner's Guide.

By the numbers: Twitter vs. Facebook IPOs

Facebook's IPO was considered an early bust while Twitter's has been deemed a success. In terms of orderly market activity, that's without question. But what about prices?

Touch and type: 3 keyboard covers for the iPad Mini

There's an old adage about software projects that says you can optimize for only two out of three factors: quality, speed and cost. Portable keyboards seem to have a similar restriction, generally scoring well in, at most, two out of three features: mobility (a form factor and weight that's easy to tote around), function (keys that have a nice feel) and ergonomics (a design that's not cramped and doesn't force your hands into an uncomfortable position).

Beginner's guide to R: Introduction

R is hot. Whether measured by more than 4,400 add-on packages, the 18,000+ members of LinkedIn's R group or the close to 80 R Meetup groups currently in existence, there can be little doubt that interest in the R statistics language, especially for data analysis, is soaring.