ericbolo

Introduction

This is a step-by-step guide to:

Creating a MEAN app
Managing and configuring three environments: local, staging and production using heroku
Connecting the app to a remote MongoDB database
Binding the production server to a domain name
Implementing a login/register system via Oauth

Installation

sudo apt-get update
sudo apt-get install build-essential
sudo apt-get install -y tcl8.5
wget http://download.redis.io/releases/redis-stable.tar.gz
tar xzf redis-stable.tar.gz
tar xzf redis-stable.tar.gz
make

make test

Introduction

This is a guide to installing, configuring and using MongoDB on localhost

Installation & boot configuration

Import public key

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927

Introduction

These are notes from this great video series by Kevin Markham: : http://www.dataschool.io/easier-data-analysis-with-pandas/

Reading tabular data

import pandas as pd

pd.read_table('data/chipotle.tsv')

Introduction

This is a list of commands and tricks to fit and evaluate machine learning models using sci-kit learn.

Most of them are notes from this great video series by Kevin Markham: http://www.dataschool.io/machine-learning-with-scikit-learn/

Classification accuracy

from sklearn import metrics print metrics.accuracy_score(y, y_pred);

Introduction

In the context of a speech-to-text/IoT project, I needed to capture the audio output of one device and feed it to the mic of my raspberry PI. This gist is stricly concerned with the hardware aspect. Since I wanted to capture speech, not music, I used only one channel of the stereo audio

Checklist

One 1 microfaraday capacitor
One 1 kilo ohm potentiometer

Introduction

This shows you how to see the live volume of sound devices on Linux. I've tested this on Raspbian Jessie.

Steps

Make sure PulseAudio is running

pulseaudio -D

	sudo rm -dr ./node_modules

	npm install

	(Assumes you are using NVM, otherwise add "sudo" to above cmd)