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LINQ: Distinct values
I have the following item set from an XML:
7 Answers
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Replace all 0 values to NA
...numeric columns. Some row has a 0 value which should be considered as null in statistical analysis. What is the fastest way to replace all the 0 value to NULL in R?
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Git Checkout warning: unable to unlink files, permission denied
I am aware that there are similar issues about git relating to the 'unable to unlink' warning, but I have not been able to use them.
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np.mean() vs np.average() in Python NumPy?
...ey offer two different functions? Seems they should just offer np.average since weights is already optional. Seems unnecessary and only serves to confuse users.
– Geoff
Nov 30 '15 at 22:03
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Looping through array and removing items, without breaking for loop
I have the following for loop, and when I use splice() to remove an item, I then get that 'seconds' is undefined. I could check if it's undefined, but I feel there's probably a more elegant way to do this. The desire is to simply delete an item and keep on going.
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Difference between a virtual function and a pure virtual function [duplicate]
... override virtual functions. Virtual functions called through base class pointers/references will be resolved at run-time. That is, the dynamic type of the object is used instead of its static type:
Derived d;
Base& rb = d;
// if Base::f() is virtual and Derived overrides it, Derived::f() w...
Remove an entire column from a data.frame in R
Does anyone know how to remove an entire column from a data.frame in R? For example if I am given this data.frame:
6 Answer...
Using Mockito to test abstract classes
...d like to test an abstract class. Sure, I can manually write a mock that inherits from the class.
11 Answers
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What are the rules for the “…” token in the context of variadic templates?
In C++11 there are variadic templates like this one:
2 Answers
2
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Reading Excel files from C#
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var fileName = string.Format("{0}\\fileNameHere", Directory.GetCurrentDirectory());
var connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);
var adapter = new OleDbDa...