bsweger

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

jfromaniello

Install command line tools:

then run this:

git config --global diff.tool bc3
git config --global difftool.bc3 trustExitCode true
git config --global merge.tool bc3

MetaRecursion

using System;

namespace AppNamespace.Caching
{
	interface ICacheService
	{
		T Get<T>(string cacheKey, Func<T> getItemCallback) where T : class;
		T Get<T>(string cacheKey, DateTime absoluteExpiration, TimeSpan slidingExpiration, Func<T> getItemCallback) where T : class;
	}
}

jwalton

Graphing Widget

The graphing widget shows graphs using the Rickshaw graphing library. The names of data fields should be (vaguely) familiar if you've used Rickshaw before.

It's recommended that you replace the /assets/javascripts/rickshaw.min.js from your dashboard with the latest from here.

Supported HTML data fields

entaroadun

Data visualization in one of three most important steps in data mining (https://github.com/entaroadun/hnpickup#readme). Often times, it's impossible to understand data without proper visualization. I went looking for great tools to do that.

Two website list recent JS visualization frameworks:

• http://www.splashnology.com/article/15-awesome-free-javascript-charts/325/
• http://sixrevisions.com/javascript/20-fresh-javascript-data-visualization-libraries/

Most of them are available on Github. My three favorite:

• https://github.com/DmitryBaranovskiy/g.raphael

GregMefford

# First do a fresh install of CentOS 5.7 i386, server configuration (no GUI)
# This should be performed as root since it's going to be installing a bunch of stuff

# --- Update things to make sure we have the latest patches ---
# Add EPEL so we can get reasonably recent packages
rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

# --- Install all the packages --- #
yum -y install python-whisper python-carbon graphite-web python-memcached python-ldap httpd memcached

NeilRobbins

// Worth noting that restrictions prevented me from accessing libraries like the Apache Commons Guid and others
// Also, not production code - needs some TLC & refactoring love
// If I get time will be moved to a proper home in GitHub


package semeosis.eventsourcing.infrastructure;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;