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Duplicate symbols for architecture x86_64 under Xcode
...nctions twice.
As the issue disappear after removing -ObjC from Other Linker Flags,
this means that this option result that functions loads twice:
from Technical Q&A
This flag causes the linker to load every object file in the library
that defines an Objective-C class or category. Whil...
How do you effectively model inheritance in a database?
...it, and each class which derives from it has its own table, with a primary key which is also a foreign key to the base class table; the derived table's class contains only the different elements.
So for example:
class Person {
public int ID;
public string FirstName;
public string LastN...
LaTeX Optional Arguments
How do you create a command with optional arguments in LaTeX?
Something like:
6 Answers
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How do I convert a string to a number in PHP?
...
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Replace all 0 values to NA
...That is, R does not reserve any space for this null object.2 Meanwhile, looking at ?'NA' we see that
NA is a logical constant of length 1 which contains a missing value
indicator. NA can be coerced to any other vector type except raw.
Importantly, NA is of length 1 so that R reserves some sp...
python pandas: apply a function with arguments to a series
...n). So now you can do:
my_series.apply(your_function, args=(2,3,4), extra_kw=1)
The positional arguments are added after the element of the series.
For older version of pandas:
The documentation explains this clearly. The apply method accepts a python function which should have a single param...
Mock functions in Go
...ith dependencies. I want to be able to replace some function calls with mock ones. Here's a snippet of my code:
6 Answers
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Understanding generators in Python
I am reading the Python cookbook at the moment and am currently looking at generators. I'm finding it hard to get my head round.
...
How to install python3 version of package via pip on Ubuntu?
... python2.7 and python3.2 installed in Ubuntu 12.04 .
The symbolic link python links to python2.7 .
17 Answers
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String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
6 Answers
6...