It’s one of the hottest tools in the Drupal 8 toolkit: the Migrate API, now part of Drupal 8 Core.
If you know how to use it, you can dramatically improve how quickly and efficiently you can upgrade a site to Drupal 8. In addition, you can use it to build regular, repeatable migrations in Drupal 8 that can pull in data from a variety of sources.
That’s why you should tune into this Tech Talk by Adam Jensen, Technical Account Manager at Acquia: (Don’t Hate) Migrate in Drupal 8.Tags: acquia drupal planet
Back when it was active, I was alerted to J. M. Ward’s Kickstarter for Dice Coins. They looked cool, but what piqued my interest was that on the site I saw them mentioned, their statistical fairness was being questioned, and Ward had essentially hand waved it away. In his defense, their fairness makes sense as long as the arc for each number is evenly spaced. I asked for a set of review prototypes to do an analysis, but none were available so I used some of my Patreon loot and backed it. Very quickly after the Kickstarter closed, product was in the mail and had arrived. Most quickly and painlessly fulfilled Kickstarter I have ever backed.
If, after reading the results below, you’d like to snag your own set, Mr. Ward provided the following statement:
“My number one goal was delivering a quality product to my kickstarter backers on time. Now that I have done that, I will be developing my website for direct sales. In the meantime, customers can e-mail me at email@example.com.”
I performed a series of chi square goodness of fit tests to test if the coins produce a reasonable approximation of the ideal uniform distribution for their die type. For each I used a sample of 5 times the number of faces on the die. This is the minimum sample size required to produce a meaningful statistical result. I chose these sample sizes both for ease of testing and because large sample sizes in this case would be overkill. These dice don’t need to exactly match the ideal distribution, they need to approximate it in short play sessions.
English summary result: The results looked very good. All of the dice easily passed a goodness of fit test at any reasonable criteria. Several of the coins were exceptionally close to the ideal distribution.
Stat summary result: p-values for H0: results are from an appropriate uniform distribution ranged from .31 to .96
Long form results:
- df – degrees of freedom, which particular chi square curve we’re comparing against. Depends on the number of sides the die has.
- Chi .05 crit val – the value, for the particular chi square curve we’re looking at, that separates the rarest 5% of groups of rolls from the rest. If the Chi Test Stat exceeds this value, we say the die is not fair. There are other critical values for other tolerances.
- Chi Test Stat – the value we calculated from our rolls. Compared to the critical value.
- p-val – how common the results we observed were. p-values fall between 1 and 0. Closer to 1 is better. Lower than .1, .05, or .01 are usual ground for declaring a deviation from the ideal standard.
That's way more than the $2.3 million in prizes awarded during last year's WCS, due entirely to Riot funneling a portion of proceeds from sales of special in-game items into the pot. ...
Founded by Cryptic expats, California-based Cold Iron Studios made a show of announcing itself to the world this week as a "fully-funded" online game studio working on its debut (UE4) game. ...
The TWG coding standards committee is announcing three coding standards changes for final discussion. These appear to have reached a point close enough to consensus for final completion. The process for proposing and ratifying changes is documented on the coding standards project page. A change to this process is being proposed to streamline the interaction between the coding standards body, Drupal Core, and the Coder project, please provide any feedback on that issue.Announced for final discussion:
- Set a standard for @var inline variable type declarations
- PHP 5.4 short array syntax coding standards - This issue was previously announced and discussed and now has new language in the summary for final consideration.
- Within the Function Calls section, delete explicit mention of padding spacing in a block of related assignments
- Define coding standards for anonymous functions (closures)
- Standardize indenting on chained method calls
These issues have a lot of support but need an update to formalize the proposal so that they can be ratified and applied.- [Agree on a property naming pattern](https://www.drupal.org/node/1233394) - [Coding standards for breaking function calls, function declarations, and language constructs across lines](https://www.drupal.org/node/1539712) - [Add type hinting to function declaration coding standards](https://www.drupal.org/node/1158720)
These proposals will be re-evaluated during the next coding standards meeting currently scheduled for December 20th. At that point the discussion may be extended, or if clear consensus has been reached one or more policies may be dismissed or ratified and moved to the next step in the process.