大约有 24,000 项符合查询结果（耗时：0.0437秒） [XML]
Private and Protected Members : C++
...ou want the derived classes to be able to see.
class A
{
private:
int _privInt = 0;
int privFunc(){return 0;}
virtual int privVirtFunc(){return 0;}
protected:
int _protInt = 0;
int protFunc(){return 0;}
public:
int _publInt = 0;
int publFunc()
{
return privV...
Functional design patterns [closed]
...s.
Chapters 11-13 cover Functors, Applicative Functors and Monads, in that order. This is helpful - many tutorials introduce Functors and then Monads, and then tack Applicative Functors on at the end (if they cover it at all). The order in LYAH is better, because moving from Functors => Applicati...
libxml/tree.h no such file or directory
...ude/libxml2" to the Header Search Path (XCode 4.2), than it says that " "_OBJC_METACLASS_$_UIResponder", referenced from: _OBJC_METACLASS_$_D2GAppDelegate in MyDemoAppDelegate.o ld: symbol(s) not found for architecture i386". What can i do?
– NicTesla
A...
How do you find out the type of an object (in Swift)?
... adding as! AnyClass after the type but then program crashes with some "EXC_BAD_INSTRUCTION" and other jiberrish that I cannot decipher.
– LightningStryk
Mar 10 '17 at 0:36
...
Getting All Variables In Scope
...omething along the lines of what KennyTM pointed out (for (var propName in ____)) since that will tell you what's available on various objects provided to you (this and arguments; if you're not sure what arguments they give you, you can find out via the arguments variable that's implicitly defined f...
How to launch Safari and open URL from iOS app
...
@g_fred. Why would he not be able to include a Swift version?
– ericgu
Mar 24 '15 at 13:21
2
...
How does collections.defaultdict work?
...
Is it functionally different than using d.get(key, default_val) ?
– Ambareesh
May 1 '19 at 1:31
35
...
Cluster analysis in R: determine the optimal number of clusters
... maximum curvature. For discrete data, it is the point with maximum second order central difference (analog to max. second order derivative for continuous data). See stackoverflow.com/a/4473065/1075993 and stackoverflow.com/q/2018178/1075993. I guess that other graphical methods could be converted t...
What is the difference between linear regression and logistic regression?
...gistic regression was introduced.
Source: http://gerardnico.com/wiki/data_mining/simple_logistic_regression
Outcome
In linear regression, the outcome (dependent variable) is continuous.
It can have any one of an infinite number of possible values.
In logistic regression, the outcome (dependen...
PostgreSQL: Show tables in PostgreSQL
...
psql my_db_name should be run in order \dt to work. When I ran psql without a database name, I got a "No relations found" message
– Maksim Dmitriev
Nov 19 '13 at 15:01
...