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In Python, what happens when you import inside of a function? [duplicate]
...le-level means each use of goo.this, goo.that, etc, is two dict lookups -- one for goo and one for the attribute name. Having it be "function level" pays one extra local-variable setting per run of the function (even faster than the dictionary lookup part!) but saves one dict lookup (exchanging it ...
What is the purpose of using -pedantic in GCC/G++ compiler?
...remove I can have my code more compatible to other compiler like Microsoft one?
– huahsin68
May 19 '10 at 1:35
4
...
How to pass in password to pg_dump?
...m all in the script. If the password changes you only have to change it in one place (the script).
And I agree with Joshua, using pg_dump -Fc generates the most flexible export format and is already compressed. For more info see: pg_dump documentation
E.g.
# dump the database in custom-format ar...
Multiple linear regression in Python
...,1,2,5,6,7,8,9,7,8,7,8,7,7,7,7,7,7,6,6,4,4,4]
]
def reg_m(y, x):
ones = np.ones(len(x[0]))
X = sm.add_constant(np.column_stack((x[0], ones)))
for ele in x[1:]:
X = sm.add_constant(np.column_stack((ele, X)))
results = sm.OLS(y, X).fit()
return results
Result:
prin...
How to combine two or more querysets in a Django view?
...w to display the results. But to do that, I have to merge 3 querysets into one.
13 Answers
...
Favorite Visual Studio keyboard shortcuts [closed]
...son - it doesn't just cycle like most apps.
– Lucas Jones
Jul 1 '09 at 21:28
6
@Lucas Jones, It s...
What is an abstract class in PHP?
...
An abstract class is a class that contains at least one abstract method, which is a method without any actual code in it, just the name and the parameters, and that has been marked as "abstract".
The purpose of this is to provide a kind of template to inherit from and to forc...
Random number generation in C++11: how to generate, how does it work? [closed]
... determines the entire sequence of "random" numbers, so a) use a different one (e.g. taken from /dev/urandom) each time, and b) store the seed if you wish to recreate a sequence of random choices.
#include <random>
typedef std::mt19937 MyRNG; // the Mersenne Twister with a popular choice of...
How do I choose grid and block dimensions for CUDA kernels?
...e CUDA grid, block and thread sizes. This is an additional question to the one posted here .
3 Answers
...
When to use generic methods and when to use wild-card?
...erence between using wildcards and type parameters are:
If you have only one parameterized type argument, then you can use wildcard, although type parameter will also work.
Type parameters support multiple bounds, wildcards don't.
Wildcards support both upper and lower bounds, type parameters just...