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Extract a substring according to a pattern
...)
strapplyc(string, ":(.*)", simplify = TRUE)
## [1] "E001" "E002" "E003"
6) read.dcf
This one only works if the substrings prior to the colon are unique (which they are in the example in the question). Also it requires that the separator be colon (which it is in the question). If a different sep...
How to set a value of a variable inside a template code?
...
JohnJohn
26.1k1010 gold badges6969 silver badges7474 bronze badges
...
Best way to give a variable a default value (simulate Perl ||, ||= )
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answered Apr 22 '16 at 14:48
jpschroederjpschroeder
4,73722 gold badges2626 silver badges3232 bronze badges
...
Read a zipped file as a pandas DataFrame
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166
If you want to read a zipped or a tar.gz file into pandas dataframe, the read_csv methods inclu...
What's the algorithm to calculate aspect ratio?
...r you're looking for an usable aspect ratio integer:integer solution like 16:9 rather than a float:1 solution like 1.77778:1.
If so, what you need to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly divides both numbers. So the G...
How to set Python's default version to 3.x on OS X?
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John R Perry
2,96011 gold badge2626 silver badges4444 bronze badges
answered Aug 25 '13 at 4:06
Santosh KumarSantosh ...
Getting All Variables In Scope
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Daniel Wolf
9,36855 gold badges3939 silver badges6969 bronze badges
answered Jan 12 '10 at 19:23
T.J. CrowderT.J. Cr...
How to convert PascalCase to pascal_case?
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Try this on for size:
$tests = array(
'simpleTest' => 'simple_test',
'easy' => 'easy',
'HTML' => 'html',
'simpleXML' => 'simple_xml',
'PDFLoad' => 'pdf_load',
'startMIDDLELast' => 'start_middle_last',
'AString' => 'a_string',
'Some4Numbers234' => 'som...
How to autosize a textarea using Prototype?
...t;script language="javascript">
google.load('prototype', '1.6.0.2');
</script>
</head>
<body>
<textarea id="text-area" rows="1" cols="50"></textarea>
<script type="text/javascript" language="javascript">
...
What is the purpose of willSet and didSet in Swift?
...ws conditional setting of an actual stored property
//True model data
var _test : Int = 0
var test : Int {
get {
return _test
}
set (aNewValue) {
//I've contrived some condition on which this property can be set
if (aNewValue != test) {
_test = aNewV...