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What is the difference between Linq to XML Descendants and Elements
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How to access pandas groupby dataframe by key
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You can use the get_group method:
In [21]: gb.get_group('foo')
Out[21]:
A B C
0 foo 1.624345 5
2 foo -0.528172 11
4 foo 0.865408 14
Note: This doesn't require creating an intermediary dictionary / copy of every subdataframe for every gr...
ggplot2 legend to bottom and horizontal
How can I move a ggplot2 legend to the bottom of the plot and turn it horizontally?
2 Answers
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Using a bitmask in C#
... enum:
[Flags]
public enum Names
{
None = 0,
Susan = 1,
Bob = 2,
Karen = 4
}
Then you'd check for a particular name as follows:
Names names = Names.Susan | Names.Bob;
// evaluates to true
bool susanIsIncluded = (names & Names.Susan) != Names.None;
// evaluates to false
bool...
How do I provide JVM arguments to VisualVM?
I'm using VisualVM from JDK 1.6.0_26 to profile a Java webapp running under Tomcat, but VisualVM often tells me that it doesn't have enough memory to take a snapshot, and to use the -Xmx switch to provide more memory to Netbeans. The problem is, I'm running VisualVM outside of Netbeans, so how can I...
error: default argument given for parameter 1
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213
You are probably redefining the default parameter in the implementation of the function. It sh...
How do I temporarily disable triggers in PostgreSQL?
...ion:
SET session_replication_role = DEFAULT;
Source: http://koo.fi/blog/2013/01/08/disable-postgresql-triggers-temporarily/
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How to search for occurrences of more than one space between words in a line
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[ ]{2,}
SPACE (2 or more)
You could also check that before and after those spaces words follow. (not other whitespace like tabs or new lines)
\w[ ]{2,}\w
the same, but you can also pick (capture) only the spaces for tasks...
Append text to input field
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205
$('#input-field-id').val($('#input-field-id').val() + 'more text');
<script src="h...
When should I use jQuery deferred's “then” method and when should I use the “pipe” method?
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Example 1
The result of some operation is an array of objects:
[{value: 2}, {value: 4}, {value: 6}]
and you want to compute the minimum and maximum of the values. Lets assume we use two done callbacks:
deferred.then(function(result) {
// result = [{value: 2}, {value: 4}, {value: 6}]
var...