Mastering Xcode 4Well that’s that. The Xcode 4 book is finished and currently being printed (and prepared for digital sale in a number of formats as well). You can preorder it now if you like. See the official announcement for (un)specific dates.

Special thanks to the crew at Peachpit (Cliff, Myrna, Scout, Robyn, Kim, and the design team I didn’t get a chance to work with directly). Thanks to all my friends and colleagues for their support and to Matt for putting up with the whole thing. Thanks to Cyril and Colin for allowing me to use their work while writing the book. Finally, thanks to Duncan for getting me in touch with Cliff.

 

I thought I’d try my hand at the kind of farewell resignation letters sent to coworkers since they seem to be popping up a lot lately. Maybe it’ll come in handy.

Appropriate form of address.

Statement of conflicting emotion regarding resignation. Reference to coworkers or employer as family. Statement of last day of work. Vague description of exciting new position. Optional details.

Expression of gratitude for past experiences and enjoyable events. Platitudes for coworkers and management.

Announcement of successor. Endorsement of successor. Assurances transition will occur smoothly. Optional details.

Repetition of gratitude. Optional invitation to keep in touch with personal contact information.

Signature.

 

SPICE 5SPICE was published in the Wiley journal Cytometry on January 7, 2011 and is listed on the Vaccine Research Center’s list of 2011 publications.

SPICE: Exploration and analysis of post-cytometric complex multivariate datasets

Mario Roederer, Joshua L. Nozzi, Martha X. Nason

Cytometry

DOI: 10.1002/cyto.a.21015

Abstract

Polychromatic flow cytometry results in complex, multivariate datasets. To date, tools for the aggregate analysis of these datasets across multiple specimens grouped by different categorical variables, such as demographic information, have not been optimized. Often, the exploration of such datasets is accomplished by visualization of patterns with pie charts or bar charts, without easy access to statistical comparisons of measurements that comprise multiple components. Here we report on algorithms and a graphical interface we developed for these purposes. In particular, we discuss thresholding necessary for accurate representation of data in pie charts, the implications for display and comparison of normalized versus unnormalized data, and the effects of averaging when samples with significant background noise are present. Finally, we define a statistic for the nonparametric comparison of complex distributions to test for difference between groups of samples based on multi-component measurements. While originally developed to support the analysis of T cell functional profiles, these techniques are amenable to a broad range of datatypes. Published 2011 Wiley-Liss, Inc.

View & Download Full Article

View | Download PDF

SPICE Web Site

SPICE is a product of NIH/NIAID and is hosted here: http://exon.niaid.nih.gov/spice

 

I decided to create a separate site for posting news, errata, examples, etc. for the Xcode book titled Develop Apps with Xcode 4, which I’m writing for Peachpit Press. You can see it at xcodebook.com and follow the Twitter account @xcodebook.

I did this so that I could keep more personal announcements or commentary here on my own site while maintaining some semblance of professionalism on the book’s site. I’ll still mention the book here but for every incremental little piece of news, I’d suggest following @xcodebook or the RSS feed at xcodebook.com.

 

It’s been about a month and a half since I announced I’m writing an Xcode 4 book for Peachpit Press. I thought I’d give a little status update for those who keep asking me about it – something more substantial than “I’m writing as fast as I can, you damn vultures!” :-)

Where Am I?

I’m very rapidly approaching the half-way point of the raw production work. That means the pure writing-and-creating-screenshots stage is almost half-way done. Of course there is the technical review and editing part and probably a bit of last-minute worriment and trouble as there always is with any reasonably-sized project. The basic cover design is already decided but I haven’t seen any of the actual layout of the content yet. It’s well on its way to being a book and now almost as long as one of my average e-mails or telephone conversations.

Wait, What?

A very comical – but thankfully very brief – misunderstanding arose last week. Born of the inadequacies of e-mail, speed-reading, and my own inevitable insecurity over doing something new, I nearly had the rare trifecta of heart attack, stroke, and aneurism. True multitasking, folks.

Cliff (the executive editor) told me he’s actually a little worried. Kim, my book editor says I’m a pleasure to work with. He immediately followed that sentence with, “you’re not trying hard enough.

In a rare moment of abject horror, my mind raced with questions like, “Why didn’t you tell me sooner?” and “What specifically is wrong?” Hoping for some clue, I re-read the paragraph. Then I got the joke. We’d been joking back and forth that, due to my often R-rated sense of humor I’m trying to scare Kim away. He was worried about me because, due to Kim’s compliment, I wasn’t trying hard enough to scare her away.

Yes, I’m still laughing thinking about it. Cliff seemed somewhat aghast to have caused such grief but to my credit he could see how I would’ve misread it at first. He assured me I’m doing fine, so I’m relieved. I’m also mildly amused that Cliff seemed to feel a little bad about actually paying me a compliment. That’ll teach’im. :-)

Faster, Damn You!

That said, I am a little behind schedule in the strictest “this chapter is due on this date” sense but some chapters are longer than others so there’s no worry so far. One earlier chapter remains incomplete due at first to the Xcode beta not cooperating and now due to just finding the time to get back to it and finish it. Another chapter caused difficulties initially because of beta issues but grew to “do I want to introduce this now or later?” and “is this basic or advanced stuff?” Decisions, decisions. Then I was sick as hell for half a week.

Conclusion (or Wrapping Up if You’re Kim)

So it’s coming along. I’m looking forward to concluding/wrapping up the book and unleashing it unto the very supportive Cocoa community. Sadly it’s time I can’t spend developing Lamp.app, my desktop answer to all the Flashlight iOS apps out there.

If you’re wondering about the conclusion/wrapping up thing, it was the one thing Kim and I actually punted back and forth over. Lacking imagination, my first chapter concluded with a section titled “Conclusion.” She felt it sounded a bit too formal (she used the phrase “high-school essay”). She suggested “Wrapping Up” or something “fun.” Now I would personally have loved to make the book funny-bordering-on-ridiculous a la the For Dummies series. After all, most of my blog posts and e-mail responses – even at work – tend toward “smart ass,” but after trying to choose a funny title, I decided overt comedy would be too a hard sell. I settled for her first choice so that I could blame her for it later.

I’ll try to keep you all updated on the latest. There’s something hilariously conceited about writing about my writing. The Cocoa community doesn’t need another Gemmell to play up the hero worship role but perhaps it could use a conceited prick of an author. There’re plenty of candidates but he who shouts loudest …

 

Now that contractual matters are settled and I’m finishing up the first chapter, I can finally announce my good news. Drumroll, please. I’m writing a book on the up-coming Xcode 4 for Peachpit Press. Yay!

Awhile back, Duncan Campbell asked Twitter if anyone was interested in writing a book on iPhone development or using Xcode (to paraphrase). Duncan has a few books out via Peachpit. I had been thinking about writing Cocoa-related books for the last couple of years but shelved the idea – pun most certainly intended. Self-publishing wasn’t a very attractive option to me because of the time and resources it would take to market it properly. Cut to present (with my thanks to Duncan and Cliff) and it’s now official.

- girlie squeal of excitement -

I’ll leave the details for later but I thought I’d share the title I selected: A One-Night Stand with Xcode 4: Sure it LOOKS clean, but how well do you really know it?

Now I’ll share the actual title kicked back and forth between Peachpit’s marketing team, Cliff, and myself: Develop Apps with Xcode 4: Use Apple’s development tools to start writing iOS and Mac OS applications

It’s just as verbose but not nearly STD-related enough for my tastes. C’est la vie.

It turns out giving a technical book a good title is rather difficult. As any blogger who reads blogs by bloggers who blog about effective blogging knows, titles and summaries should be search-engine-friendly in addition to being well-focused (and ideally with a call to action). All the titles I could think of were shaded by all the popular “series” action phrases like “jump into” and “teach yourself.” I am dutifully ashamed. I trust Peachpit’s marketing team over my own smart ass any day.

Runners up were Xcode 4: The Book, Bob: The Xcode 4 Book, and so on.

I’m already off to a good start and look forward to gaining a following of millions of Xcode 4 minions by second quarter of 2011.

Jan 222010
 

I found something I’d written from a few years ago. I stuffed it into a “junk drawer” type of folder and promptly forgot all about it.

We have not factored in

     all the variables.

All is lost, all is lost.

     Everything is lost.

We have failed to predict

     any of the effects.

All is lost, all is lost,

     understand? It’s lost.

We could not have foreseen

     this unfortunate course.

All is lost, all is lost!

     Oh God save our souls!

Rather despairing, isn’t it?

© 2011 Joshua NozziJoshua Nozzi is a Cocoa developer for hire.Suffusion theme by Sayontan Sinha