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Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
... the difference? Very approximately, IaaS gives you components you need in order to build things on top of it; PaaS gives you an environment where you just push code and some basic configuration and get a running application. IaaS can give you more power and flexibility, at the cost of having to bui...
How are feature_importances in RandomForestClassifier determined?
...s a list of DecisionTreeClassifier (as mentioned in the documentation). In order to compute the feature_importances_ for the RandomForestClassifier, in scikit-learn's source code, it averages over all estimator's (all DecisionTreeClassifer's) feature_importances_ attributes in the ensemble.
In Deci...
When to use reinterpret_cast?
...is true that reinterpret_cast is not portable because of one reason - byte order (endianness). But this is often surprisingly the best reason to use it. Let's imagine the example: you have to read binary 32bit number from file, and you know it is big endian. Your code has to be generic and works pro...
Getting key with maximum value in dictionary?
... I thought dict is unsorted, couldn't d.keys and d.values theoretically be ordered differently?
– Dimath
Apr 1 '15 at 13:28
1
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Example for boost shared_mutex (multiple reads/one write)?
... the number of readers. Let each reader take one count of the semaphore in order to read, that way they can all read at the same time. Then let the writer take ALL the semaphore counts prior to writing. This causes the writer to wait for all reads to finish and then block out reads while writing.
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What's the difference between lists and tuples?
..., while lists are homogeneous sequences. Tuples have structure, lists have order.
Using this distinction makes code more explicit and understandable.
One example would be pairs of page and line number to reference locations in a book, e.g.:
my_location = (42, 11) # page number, line number
Yo...
Django South - table already exists
...
Perform these steps in order may help you:
1) python manage.py schemamigration apps.appname --initial
Above step creates migration folder as default.
2) python manage.py migrate apps.appname --fake
generates a fake migration.
3) python manage....
How to use Boost in Visual Studio 2010
...ould be noted that you must choose Tools > Settings > Expert Mode in order to even see the property sheets. Took me some googling to finally find this out...
– Zack The Human
Aug 18 '10 at 0:41
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Finding duplicate values in a SQL table
...s unpredictable and you need sql_mode=only_full_group_by:
GROUP BY lname ORDER BY showing wrong results;
Which is the least expensive aggregate function in the absence of ANY() (see comments in accepted answer).
Oracle isn't mainstream enough (warning: humour, I don't know about Oracle).
...
How do you loop through currently loaded assemblies?
...tReferencedAssemblies();
return results.Select(o => o.FullName).OrderBy(o => o).ToList();
}
/// <summary>
/// Intent: Get assemblies currently dependent on entry assembly. Recursive.
/// </summary>
public static Dictionary<string, Assembly> My...