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Fastest way to replace NAs in a large data.table
...ystem.time(res2 <- f_andrie(dt1))
User System verstrichen
2.95 0.33 3.28
system.time(f_dowle2(dt2))
User System verstrichen
0.78 0.00 0.78
system.time(f_dowle3(dt3))
User System verstrichen
0.17 0.00 0.17
system.time...
iPhone App Minus App Store?
...number you have. So if you add 5 devices and then delete all 5, you have 95 (not 100) more devices you may add.
– Scott C Wilson
May 12 '11 at 17:49
1
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What are the differences between json and simplejson Python modules?
... 'v1.0.3286', 'message': 'Successful Parse', 'muuid1': '11e2-8414-a5e9e0fd-95a6-12313913cc26', 'api_reply': {"api_reply": {"Money": {"Currency": "ILS", "Amount": "123", "Restriction": "Less"}, "ProcessedText": "ny monday for less than \\u20aa123", "Locations": [{"Index": 0, "Derived From": "Default"...
Joda-Time: what's the difference between Period, Interval and Duration?
...e thing: 3600000 milliseconds.
(Math analogy: the intervals [10,12] and [95,97] are different intervals, but they have the same length: "interval length" maps to duration).
Finally, a period is a lapse of "civil time", expressed as a number of months, days, hours, etc. It does not -by itself- rep...
Is there an R function for finding the index of an element in a vector?
...
Joris MeysJoris Meys
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How is the default submit button on an HTML form determined?
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Andrzej DoyleAndrzej Doyle
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How can javascript upload a blob?
...actly is in upload.php. So here you go:
(tested only in Chrome 28.0.1500.95)
// javascript function that uploads a blob to upload.php
function uploadBlob(){
// create a blob here for testing
var blob = new Blob(["i am a blob"]);
//var blob = yourAudioBlobCapturedFromWebAudioAPI;// for...
Purpose of Django setting ‘SECRET_KEY’
...ckled + settings.SECRET_KEY).hexdigest()
contrib/sessions/backends/base.py:95: if md5_constructor(pickled + settings.SECRET_KEY).hexdigest() != tamper_check:
contrib/sessions/backends/base.py:134: # Use settings.SECRET_KEY as added salt.
contrib/sessions/backends/base.py:143: ...
Erasing elements from a vector
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MottiMotti
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What is the JavaScript convention for no operation?
...
95
To answer the original question, the most elegant and neat implementation of a noop function in...