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How do I use Linq to obtain a unique list of properties from a list of objects?
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IEnumerable<int> ids = list.Select(x=>x.ID).Distinct();
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How do I set a ViewModel on a window in XAML using DataContext property?
... (which are good, and correct), there is a way to specify the ViewModel in XAML, yet still separate the specific ViewModel from the View. Separating them is useful for when you want to write isolated test cases.
In App.xaml:
<Application
x:Class="BuildAssistantUI.App"
xmlns="http://sch...
What is “entropy and information gain”?
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I assume entropy was mentioned in the context of building decision trees.
To illustrate, imagine the task of learning to classify first-names into male/female groups. That is given a list of names each labeled with either m or f, we want to learn a model that fits th...
Should you always favor xrange() over range()?
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For performance, especially when you're iterating over a large range, xrange() is usually better. However, there are still a few cases why you might prefer range():
In python 3, range() does what xrange() used to do and xrange() does not exist. If you want to write code that will run on bot...
ProcessStartInfo hanging on “WaitForExit”? Why?
...r order you use, there can be a problem:
If you wait for the process to exit before reading StandardOutput the process can block trying to write to it, so the process never ends.
If you read from StandardOutput using ReadToEnd then your process can block if the process never closes StandardOutput ...
How to access object attribute given string corresponding to name of that attribute
How do you set/get the values of attributes of t given by x ?
3 Answers
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How do I get an empty array of any size in python?
...able obj, and you modify one item, all will be changed. ...But, for this example using integers (or any other immutable type), it makes no difference. Or, if you just assign to elements, it is not a problem either. (I mention it because I've done exactly that far too often :) )
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Haskell: Where vs. Let
...rouble discerning when to use each. Could someone please provide some context or perhaps a few examples that demonstrate when to use one over the other?
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how to find host name from IP with out login to the host
i need to find the host name of a UNIX host whose IP is known with out login to that UNIX host
11 Answers
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How do I delete from multiple tables using INNER JOIN in SQL server
In MySQL you can use the syntax
13 Answers
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