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Where can I learn how to write C code to speed up slow R functions? [closed]
...trived example).
Edit 3: There is complexity in that you may run into C++ errors that are, to put it mildly, hard to grok. But to just use Rcpp rather than to extend it, you should hardly ever need it. And while this cost is undeniable, it is far eclipsed by the benefit of simpler code, less boil...
Getting Django admin url for an object
...index') and was constantly getting django.core.urlresolvers.NoReverseMatch errors.
Turns out I had the old format admin urls in my urls.py file.
I had this in my urlpatterns:
(r'^admin/(.*)', admin.site.root),
which gets the admin screens working but is the deprecated way of doing it. I needed...
Session variables in ASP.NET MVC
... out why I kept on getting a "Instance not set to an instance of an Object error". What I noticed is that in a controller when I tried to access the session by doing the following, I kept on getting that error. This is due to the fact that this.HttpContext is part of the Controller object.
this.Se...
What is in your Mathematica tool bag? [closed]
... to address when implementing a full solution of this kind (like capturing error messages properly), but one must appreciate the fact that it is not only possible to do things like this, but practical.
On a personal note, it is features like this that makes the notebook interface the center of my p...
Is “else if” a single keyword?
...ames Kanze
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How to remove the first and the last character of a string
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answered Nov 25 '13 at 15:05
leafleaf
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Best way to replace multiple characters in a string?
...ce(c, "\\" + c)
With the shorter input:
ab) 100000 loops, best of 3: 7.05 μs per loop
ba) 100000 loops, best of 3: 2.4 μs per loop
With the longer input:
ab) 100000 loops, best of 3: 7.71 μs per loop
ba) 100000 loops, best of 3: 6.08 μs per loop
So I'm going to use ba for readability a...
Get button click inside UITableViewCell
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can you help me, i am getting error at this line: class MyTableViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, OptionButtonsDelegate //error: Redundant conformance of 'MyTableViewController' to protocol 'UITableViewDataSourc...
Check if key exists and iterate the JSON array using Python
..."message": "How ARE you?", "comments": {"count": 0}, "updated_time": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}"""
def getTargetIds(jsonData):
data = json.loads(jsonData)
if 'to' not in data:
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Check if all checkboxes are selected
How do I check if all checkboxes with class="abc" are selected?
9 Answers
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