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How to reshape data from long to wide format
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@indra_patil - I would likely use the reshape2 package as indicated in one of the other answers. You could create a new question that's specific to your use case and post it if you can't figure it out.
– Chase...
Quickest way to convert a base 10 number to any base in .NET?
... digits = (new[] { NullDigit }).Concat(digits);
}
_digitToIndexMap =
digits
.Select((digit, index) => new { digit, index })
.ToDictionary(keySelector: x => x.digit, elementSelector: x => x.index);
_radix =...
Java abstract interface
...ared" abstract?
It's not.
public abstract interface Interface {
\___.__/
|
'----> Neither this...
public void interfacing();
public abstract boolean interfacing(boolean really);
\___.__/
|
'----> nor this, are ne...
What is the purpose of the single underscore “_” variable in Python?
What is the meaning of _ after for in this code?
5 Answers
5
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Debugging in Clojure? [closed]
...race) java.io.FileNotFoundException: Could not locate closure/contrib/trace__init.class or closure/contrib/trace.clj on classpath: (NO_SOURCE_FILE:0)
– LarsH
Sep 3 '10 at 20:49
2
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Two way/reverse map [duplicate]
...ic that you want. Here's a basic example:
class TwoWayDict(dict):
def __setitem__(self, key, value):
# Remove any previous connections with these values
if key in self:
del self[key]
if value in self:
del self[value]
dict.__setitem__(self,...
How to set custom header in Volley Request
...id.volley.toolbox.StringRequest {
private final Map<String, String> _params;
/**
* @param method
* @param url
* @param params
* A {@link HashMap} to post with the request. Null is allowed
* and indicates no parameters will be posted along with request.
* @param li...
Change SVN repository URL
...URL to non-SSH or vice versa, for example: svn switch --relocate svn+ssh://_svn_server_/_svn_project_/_svn_branch_ svn://_svn_server_/_svn_project_/_svn_branch_. The last is especially helpful if you do automated checkout as svn+ssh on several nodes using Jenkins API and some of them (Windows nodes)...
How to implement “select all” check box in HTML?
...: for each...in is actually valid Javascript: developer.mozilla.org/en/Core_JavaScript_1.5_Reference/… But, as porneL has pointed out, it's an obscure construct. Also, this code doesn't work in Safari 5 or Chrome 5. It works in FF 3.6, and IIRC, it worked in Safari 4. for(var i in checkboxes) chec...
How do you echo a 4-digit Unicode character in Bash?
... That's true. I discovered i was using LANG=C instead of LANG=en_US.UTF-8. Now my terminals in Gnome show the symbols properly... The real terminals (tty1-6) still don't though.
– trusktr
Oct 3 '12 at 0:09
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