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Rename specific column(s) in pandas
...' else x for x in df.columns]
Or, construct a mapping using a dictionary and perform the list-comprehension with it's get operation by setting default value as the old name:
col_dict = {'gdp': 'log(gdp)', 'cap': 'cap_mod'} ## key→old name, value→new name
df.columns = [col_dict.get(x, x) fo...
Converting a Java Keystore into PEM Format
... trying to convert from a Java keystore file into a PEM file using keytool and openssl applicactions. But I could not find a good way to do the conversion. Any ideas?
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A semantics for Bash scripts?
...ripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the...
SQL Server Escape an Underscore
...kets. The following table shows several examples of using the LIKE keyword and the [ ] wildcard characters.
For your case:
... LIKE '%[_]d'
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Difference between . and : in Lua
I am confused about the difference between function calls via . and via :
3 Answers
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Convert from List into IEnumerable format
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You can use the extension method AsEnumerable in Assembly System.Core and System.Linq namespace :
List<Book> list = new List<Book>();
return list.AsEnumerable();
This will, as said on this MSDN link change the type of the List in compile-time.
This will give you the benefits also...
Share variables between files in Node.js?
... The OP is asking whether a variable can be defined in the main.js, and then used in module.js. I have the same requirement to define paths that are used over and over again.
– designermonkey
Apr 29 '14 at 14:00
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Django rest framework, use different serializers in the same ModelViewSet
I would like to provide two different serializers and yet be able to benefit from all the facilities of ModelViewSet :
6 A...
How can I maximize a split window?
...p manual page with split window. I want to maximize the help manual window and close the other window.
11 Answers
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Hidden features of C
I know there is a standard behind all C compiler implementations, so there should be no hidden features. Despite that, I am sure all C developers have hidden/secret tricks they use all the time.
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