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Mark Needham09/04/14
3091 views
0 replies

R: ggplot - Cumulative frequency graphs

The first step was to transform the data so that I had a data frame where a row represented a day where a member joined the group. To turn that into a chart we can plug it into ggplot and use the cumsum function to generate a line showing the cumulative total:

Alec Noller09/03/14
9044 views
0 replies

Dev of the Week: Hébert Coelho de Oliveira

Every week here and in our newsletter, we feature a new developer/blogger from the DZone community to catch up and find out what he or she is working on now and what's coming next. This week we're talking to Hebert Coelho De Oliveira, Senior Developer at M4U.

Gil Zilberfeld09/03/14
7207 views
1 replies

Metrics: Good vs. Evil

In our ever going search for simplicity, metrics help us minimize a whole uncertain world into a number. We like that. But metrics are over-simplification. We should use them like that.

Jonas Gauffin09/03/14
4309 views
9 replies

Communicating business rules with methods

Do you use anemic models? i.e. having business classes like “User” without any methods but just properties instead? Do you want to do better but do not know how?

Mark Needham09/03/14
5015 views
0 replies

R: Grouping by week, month, quarter

In my continued playing around with R and meetup data I wanted to have a look at when people joined the London Neo4j group based on week, month or quarter of the year to see when they were most likely to do so.

Alec Noller09/03/14
9857 views
0 replies

The Best of DZone: August 27 - September 3

If you missed anything on DZone this week, now's your chance to catch up! This week's best include the anatomy of Hibernate dirty checking, the similarities of Swift and Scala, the Agile version of Superman vs. Batman, and more.

Andrew Fuqua09/02/14
7034 views
0 replies

Flow Is For Sissies

The moral of the story is that real options thinking, systems thinking and many other such concepts present or yet to come may be more appropriate in some cases than Lean/Kanban thinking. Lean/Kanban thinking is useful, but it isn’t all there is.

Rob Galanakis09/02/14
5111 views
1 replies

Hire talented people and get out of their way?

Today's quote is: "In most cases being a good boss means hiring talented people and then getting out of their way." This advice (hire smart, don’t micromanage) is so simplistic, it’s hardly worth saying. The profound stupidity is equating this with “being a good boss“. No, hiring smart people and not micromanaging them is the absolute, bare minimum you should be doing as a boss.

Anders Abel09/02/14
3869 views
0 replies

A Geek's Nightmare

Last night I woke up after a night mare. A nightmare containing a future, “improved” version of powershell a competing blogger and Entity Framework Migrations. Slightly off topic, but I’ll share it anyway.

Allan Kelly09/01/14
949 views
0 replies

Book: Scaling up Excellence

Right now I want to blog about a book because I want to recommend this book. The book is: Scaling Up Excellence by Robert Sutton and Huggy Rao. I hope this book becomes more widely known in the software development community, and particularly those concerned with “Agile” and “Scaling Agile.”

Tracy Vides09/01/14
849 views
0 replies

6 Copy Writing Secrets from the Masters

Words have the power to bring about revolutions. How do those of master wordsmiths make the world sit up and take notice, while most of ours fall on deaf ears?

Nicolas Frankel09/01/14
8175 views
2 replies

Using exceptions when designing an API

Many knows the tradeoff of using exceptions while designing an application: On one hand, using try-catch block nicely segregates between regular code and exception handling code On the other hand, using exceptions has a definite performance cost for the JVM. This week has proved to me that exception handling in designing an API is a very serious decision.

Kaveh Shahbazian09/01/14
8702 views
5 replies

Two Tales: Object Oriented Programming & Functional Programming

Recently, while crawling in old scrap repositories, I've found something that ironically still makes sense! And that was a different point of view about the relation between OOP (Object Oriented Programming) and FP (Functional Programming).

Robert Diana09/01/14
8797 views
0 replies

Programming Languages Job Trends: Part 2 - August 2014

In part 1 of the programming language job trends, we reviewed Java, C++, C#, Objective C, and Visual Basic. In today’s installment, we review trends for PHP, Python, JavaScript, Ruby, and PERL. Watch for part 3 in the next few days, where we will look at some emerging languages and others gaining steam.

Gerry Claps08/31/14
968 views
0 replies

3 Simple Steps to Effective Retrospectives

Do you create a list of actions by analyzing the data you collect in your Retrospectives? Read on for 3 simple steps on how to run your Agile Retrospectives.