ScottPhillips

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briankung

Learning Object Oriented Python

I wrote this as a guide for a financial analyst friend of mine looking to learn Python. He is already fairly well versed in doing Project Euler problems in Ruby. All italicized text is for the benefit of any other readers, such as yourself.

Each section is divided into a short resource (10 minutes or less), a long resource (days to weeks or more), and a challenge.

~

So what you're looking to do is to be able to recreate financial models in code. And other types of models. This is a noble pursuit.

subfuzion

Install with Homebrew

brew install mongodb

Set up launchctl to auto start mongod

$ ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents

/usr/local/opt/mongodb/ is a symlink to /usr/local/Cellar/mongodb/x.y.z (e.g., 2.4.9)

graydon

# extracted from http//www.naturalearthdata.com/download/110m/cultural/ne_110m_admin_0_countries.zip
# under public domain terms

country_bounding_boxes = {
    'AF': ('Afghanistan', (60.5284298033, 29.318572496, 75.1580277851, 38.4862816432)),
    'AO': ('Angola', (11.6400960629, -17.9306364885, 24.0799052263, -4.43802336998)),
    'AL': ('Albania', (19.3044861183, 39.624997667, 21.0200403175, 42.6882473822)),
    'AE': ('United Arab Emirates', (51.5795186705, 22.4969475367, 56.3968473651, 26.055464179)),
    'AR': ('Argentina', (-73.4154357571, -55.25, -53.628348965, -21.8323104794)),
    'AM': ('Armenia', (43.5827458026, 38.7412014837, 46.5057198423, 41.2481285671)),

teechap

'''
Most heatmap tutorials I found online use pyplot.pcolormesh with random sets of
data from Numpy; I just needed to plot x, y, z values stored in lists--without
all the Numpy mumbo jumbo. Here I have code to plot intensity on a 2D array, and
I only use Numpy where I need to (pcolormesh expects Numpy arrays as inputs).
'''
import matplotlib.pyplot as plt
import numpy as np

#here's our data to plot, all normal Python lists

josephliccini

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

/**
 * Credit for Algorithm from top answer in: 
 * http://stackoverflow.com/questions/7116438/algorithms-question-flipping-columns
 * 
 * This problem is given to interview candidates in the screening process
 * for Palantir Technologies.  I've seen it through several different 

DingGGu

var express     = require('express');
var app         = express();
var fs          = require('fs');

app.listen(3000, function() {
    console.log("[NodeJS] Application Listening on Port 3000");
});

app.get('/api/play/:key', function(req, res) {
    var key = req.params.key;

jinstrive

def remove_emoji(data):
    """
    去除表情
    :param data:
    :return:
    """
    if not data:
        return data
    if not isinstance(data, basestring):
        return data

seominjoon

# install torch on ec2 g2 instance

# installing torch
curl -s https://raw.githubusercontent.com/torch/ezinstall/master/install-deps | bash  # prereqs
git clone https://github.com/torch/distro.git ~/torch --recursive
cd ~/torch; ./install.sh
source ~/.bashrc

# confirm torch is installed
th

ax3l

Overview: http://matplotlib.org/faq/usage_faq.html#usage

Multiple, manual Axes: https://python4mpia.github.io/plotting/advanced.html

Another intro article http://pbpython.com/effective-matplotlib.html

Great Foo