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What are the differences between numpy arrays and matrices? Which one should I use?

...ted/numpy.matrix.html As other answers already state that you can achieve all the operations with NumPy arrays. share | improve this answer | follow | ...
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Scala vs. Groovy vs. Clojure [closed]

... Groovy is a dynamically typed language, whose syntax is very close to Java, with a number of syntax improvements that allow for lighter code and less boilerplate. It can run through an interpreter as well as being compiled, which makes it good ...
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Properties vs Methods

...t to be used like fields, meaning that properties should not be computationally complex or produce side effects. When it does not violate the following guidelines, consider using a property, rather than a method, because less experienced developers find properties easier to use. ...
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Ensure that HttpConfiguration.EnsureInitialized()

I've installed Visual Studio 2013 and when I run my app I get the error below. 14 Answers ...
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Combining two Series into a DataFrame in pandas

... this actually avoids copying too (as compared to the dict solution) – Jeff Aug 5 '13 at 16:27 ...
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How do I add an existing directory tree to a project in Visual Studio?

The issue is simple really. Instead of creating folders in Visual Studio, I create a directory structure for my project on the file system. How do I include all the folders and files in a project, keeping the structure? ...
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Entity Framework - Code First - Can't Store List

... This is the only really correct answer IMHO. All the others require you to change your model, and that violates the principle that domain models should be persistence ignorant. (It is fine if you are using separate persistence and domain model...
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How to update Python?

I have version 2.7 installed from early 2012. I can't find any consensus on whether I should completely uninstall and wipe this version before putting on the latest version. ...
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Replacement for “rename” in dplyr

...which does keep it consistent with the rest of the dplyr functions. Personally, I don't think of it as a problem--you get used to new things quickly especially when it means a significant speedup in your data processing. – vergilcw Feb 3 '14 at 15:47 ...
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What are the benefits of using C# vs F# or F# vs C#? [closed]

...g is extremely easy and intuitive with async {}-expressions - Even with ParallelFX, the corresponding C#-code is much bigger Very easy integration of compiler compilers and domain-specific languages Extending the language as you need it: LOP Units of measure More flexible syntax Often shorter and m...