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)

baldwint

"""
Hinton diagrams in matplotlib.

A Hinton diagram is useful for visualizing a matrix of signed weights.
In the diagram, each matrix element is represented by a square whose
color indicates the sign and whose area represents the magnitude.

"""

import matplotlib.patches as mpatches

dypsilon

Backend Development

• node.js
  • Installation paths: use one of these techniques to install node and npm without having to sudo.
  • Node.js HOWTO: Install Node+NPM as user (not root) under Unix OSes
  • Felix's Node.js Guide
  • Creating a REST API using Node.js, Express, and MongoDB
  • Node Cellar Sample Application with Backbone.js, Twitter Bootstrap, Node.js, Express, and MongoDB
  • JavaScript Event Loop
• Node.js for PHP programmers

jaytaylor

#!/usr/bin/env python

"""
Convert camel-case to snake-case in python.

e.g.: CamelCase -> snake_case

Relevant StackOverflow question: http://stackoverflow.com/a/1176023/293064
"""

mtigas

from django.conf import settings
from django.http import HttpResponsePermanentRedirect, get_host

class ForceSSLMiddleware(object):
    """
    Redirects all (non-DEBUG) requests to go through SSL.

    Picks up the `HTTP_X_FORWARDED_PROTO` proxy header set by Heroku.

    Also sets the "Strict-Transport-Security" header for 600 seconds so that

agramfort

"""
This module implements the Lowess function for nonparametric regression.

Functions:
lowess Fit a smooth nonparametric regression curve to a scatterplot.

For more information, see

William S. Cleveland: "Robust locally weighted regression and smoothing
scatterplots", Journal of the American Statistical Association, December 1979,