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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
...s is an active field of statistics.
quantile estimation example: http://www.computer.org/portal/web/csdl/doi/10.1109/WSC.2006.323014
mode estimation example: Bickel DR. Robust estimators of the mode and skewness of continuous data. Computational Statistics and Data Analysis. 2002;39:153–163. d...
Convert NSDate to NSString
...
there are a number of NSDate helpers on the web, I tend to use:
https://github.com/billymeltdown/nsdate-helper/
Readme extract below:
NSString *displayString = [NSDate stringForDisplayFromDate:date];
This produces the following kinds of output:
‘3:42 AM’ – if the date is afte...
count the frequency that a value occurs in a dataframe column
..._counts() for c in list(my_series.select_dtypes(include=['O']).columns)]
https://stackoverflow.com/a/28192263/786326
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How do you match only valid roman numerals with a regular expression?
...line Ruby demo: http://rubular.com/r/KLPR1zq3Hj
Online Conversion: http://www.onlineconversion.com/roman_numerals_advanced.htm
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How to model type-safe enum types?
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http://www.scala-lang.org/docu/files/api/scala/Enumeration.html
Example use
object Main extends App {
object WeekDay extends Enumeration {
type WeekDay = Value
val Mon, Tue, Wed, Thu, Fri, Sat, Sun = Value
}...
How to unit test an object with database queries
...t in-memory databases - the best by a long way seems to be SQLite. (http://www.sqlite.org/index.html). It's remarkably simple to set up and use, and allowed us subclass and override GetDatabase() to forward sql to an in-memory database that was created and destroyed for every test performed.
We're...
Use Fieldset Legend with bootstrap
...t;
}
.panel-body {
padding-top: 30px !important;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="panel panel-primary">
<div class="panel-body">
<h3 class="...
Command line for looking at specific port
...command? I want to know this port number is working or not link:- [link]( https://.localhost:9043/ibm/console/login.do)
– Mayur Ingle
May 26 '17 at 12:09
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Why do some claim that Java's implementation of generics is bad?
...be inspected as generics.
Great overview of the differences here: http://www.jprl.com/Blog/archive/development/2007/Aug-31.html
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What are the key differences between Meteor, Ember.js and Backbone.js? [closed]
...nt and server side then take a look the recently open sourced yahoo mojito https://github.com/yahoo/mojito running on node.js - I've been messing around with it over the last week, and If you become familiar with backbone/ember or any of the others its a snap to get to grips with.
I should also say...