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How can I get a precise ti<em>mem>e, for exa<em>mem>ple in <em>mem>illiseconds in Objective-C?

Is there an easy way to get a ti<em>mem>e very precisely? 11 Answers 11 ...
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How to add a touch event to a UIView?

... In iOS 3.2 and higher, you can use gesture recognizers. For exa<em>mem>ple, this is how you would handle a tap event: //The setup code (in viewDidLoad in your view controller) UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self ...
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Su<em>mem><em>mem>arizing <em>mem>ultiple colu<em>mem>ns with dplyr? [duplicate]

I'<em>mem> struggling a bit with the dplyr-syntax. I have a data fra<em>mem>e with different variables and one grouping variable. Now I want to calculate the <em>mem>ean for each colu<em>mem>n within each group, using dplyr in R. ...
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How can I list ALL DNS records?

Is there any way I can list ALL DNS records for a do<em>mem>ain? 8 Answers 8 ...
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<em>Mem>ySQL connection not working: 2002 No such file or directory

I'<em>mem> trying to set up WordPress. I have Apache and <em>Mem>ySQL running, and the accounts and database are all set up. I tried to <em>mem>ake a si<em>mem>ple connection: ...
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Generating a UUID in Postgres for Insert state<em>mem>ent?

<em>Mem>y question is rather si<em>mem>ple. I'<em>mem> aware of the concept of a UUID and I want to generate one to refer to each 'ite<em>mem>' fro<em>mem> a 'store' in <em>mem>y DB with. See<em>mem>s reasonable right? ...
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]

I'<em>mem> currently looking at other search <em>mem>ethods rather than having a huge SQL query. I saw elasticsearch recently and played with whoosh (a Python i<em>mem>ple<em>mem>entation of a search engine). ...
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Cross co<em>mem>pile Go on OSX?

I a<em>mem> trying to cross-co<em>mem>pile a go app on OSX to build binaries for windows and linux. I have read everything what I could find on the net. Closest exa<em>mem>ple that I have found has been published on (apart fro<em>mem> <em>mem>any unfinished discussions on go-nuts <em>mem>ailing list): ...
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What is the difference between supervised learning and unsupervised learning? [closed]

In ter<em>mem>s of artificial intelligence and <em>mem>achine learning, what is the difference between supervised and unsupervised learning? Can you provide a basic, easy explanation with an exa<em>mem>ple? ...
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When to use IList and when to use List

...t is the concrete type but I still don't know when to use each one. What I'<em>mem> doing now is if I don't need the Sort or FindAll <em>mem>ethods I use the interface. A<em>mem> I right? Is there a better way to decide when to use the interface or the concrete type? ...