ericbolo

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print("hello world")

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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

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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

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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

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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')

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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);

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sudo rm -dr ./node_modules

npm install

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

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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

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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