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Erich Styger11/22/14
2 replies

Engineering Joke of the Week: The Frog

A little engineering humor for your weekend...

Mark Needham11/22/14
0 replies

R: dplyr - Group by field dynamically

A few months ago I wrote a blog explaining how to dynamically/programatically group a data frame by a field using dplyr but that approach has been deprecated in the latest version. It turns out the ‘group_by_’ function doesn’t want to receive a list of fields so let’s remove the call to list:

Sarah Parker11/22/14
0 replies

Coding Your HTML Email - 3 Common Issues and How to Fix Them

HTML emails can be very profitable for your business, as they help you connect with your customers in a highly efficient and effective manner. Here are some tips to maximize HTML to market your business.

Michael Sahota11/21/14
0 replies

People over Process

Agile and Lean are a means to an end. Once we are clear what our goals are and our approach is consistent with what we truly value, then we may hope for success. We outline a fundamentally different approach for organizational change: one where valuing people is integral to building lasting success.

Allan Kelly11/21/14
4 replies

Does Agile require cultural change?

I sit in Agile conferences and I hear people say “To really become Agile you need culture change.” And I agree with them. But…

Mike Cottmeyer11/21/14
0 replies

Replacing Backlog Grooming

Over the last few years, I’ve worked with numerous teams. One thing they all struggle with is backlog grooming. Over the last few years I have evolved my practice of backlog grooming.

Mark Needham11/21/14
0 replies

R: Joining multiple data frames

I’ve been looking through the code from Martin Eastwood’s excellent talk ‘Predicting Football Using R‘ and was intrigued by the code which reshaped the data into that expected by glm. I really like dplyr’s pipelining function so I thought I’d try and translate Martin’s code to use that and other dplyr functions.

Juri Strumpflohner11/21/14
0 replies

JavaScript Promises: Essentials

JavaScript is asynchronous by definition, which is what makes many server-side developers struggle initially. Many even try to avoid asynchronism as much as they can rather than to embrace it. Others end up in a callback mess. That's where promises come into play.

Saul Zukauskas11/21/14
0 replies

10 Must-Have JS Plugins for Busy Developers

About a year ago, my team and I reached an impasse. We built sites with PHP/Wordpress, but there was one problem: We were slow. So we analyzed our processes, searching for the easiest to install, most customizable JS scripts in the world, and saw an increase in productivity. Here are our findings.

Rob J Hyndman11/20/14
0 replies

Seasonal Periods

The “fre­quency” is the num­ber of obser­va­tions per sea­son. This is the oppo­site of the def­i­n­i­tion of fre­quency in physics, or in Fourier analy­sis, where “period” is the length of the cycle, and “fre­quency” is the inverse of period. When using the ts() func­tion in R, the fol­low­ing choices should be used.

Maneesh Joshi11/20/14
0 replies

Top 5 Mobile APM Myths: Myths 1 & 2

There is a lot of confusion in the market today. So in this blog post, I’d like to dispel some key myths around mobile apps. And how, with the right mAPM tool, you can nail your mobile app experience — both interactivity-wise and performance-wise — and thereby win the market.

John De Goes11/20/14
1 replies

NewTypes Aren't As Cool As You Think

My last post talked about what’s wrong with type classes. This post generated some great feedback on Reddit, so I took some of that feedback and incorporated it into a revised version of the post, but I have even more to say about “newtypes," so I decided to write another blog post.

John Walter11/20/14
0 replies

WatchKit SDK Launches

With the WatchKit SDK launching, here's a preview of all of the features for developing on the Apple Watch.

Remy Sharp11/20/14
0 replies

My Five Promise Patterns

I've been getting big into promises over the last year. There's been some JavaScript patterns that I use over and over, so I wanted to share and document them.

Troy Hunt11/20/14
0 replies

Does an Insecure Website Compromise the Security of a Payment System in an Iframe?

Everyone remembers the problem with SSL 3, right? But we’re also seeing SSL 2 supported. In this post, I will analyze the assertion that the security proposition of the merchant’s site is inconsequential so long as the payment provider is in ship shape.