fonsp

Deploying Julia on heroku

Let's assume that you can run your web server on your own computer, and that you can open it in your own browser (through localhost or 127.0.0.1). This guide will go through the steps of putting that app online!

This guide will be based on a hello world sample project that uses Genie.jl, but the steps from this guide apply to any Julia web framework.

heroku has tons of features, but for a simple app, we only need the basics. In particular, we do not need the heroku command line, we can do everything through the online GUI.

Basics

heroku uses git for deployment: to package your app, you create a git repository, and to put a new version of your app online, you push to the git repository. If you already know git, then you now know how to manage a web server! It's like GitHub pages, but more powerful (and more complicated). Read heroku's introduction for a basi

tvst

import streamlit as st
import os
import sys
import importlib.util

# Parse command-line arguments.
if len(sys.argv) > 1:
    folder = os.path.abspath(sys.argv[1])
else:
    folder = os.path.abspath(os.getcwd())

mnguyenngo

import numpy as np
import matplotlib.pyplot as plt
import scipy.stats as scs

def z_val(sig_level=0.05, two_tailed=True):
    """Returns the z value for a given significance level"""
    z_dist = scs.norm()
    if two_tailed:
        sig_level = sig_level/2
        area = 1 - sig_level

svaksha

A quick and dirty syntax translation / conversion reference guide to ease the transition between Python and Julia. This is not meant as a reference to the language. For that you should read the manual.

Some important differences

• Arrays in Julia are indexed starting from 1.
• In Julia classes (i.e. types) don't own methods. Methods are implementations of generic functions and are invoked in a "static style", i.e. instead of Python's str1.rstrip(), we will have rstrip( str1 ), instead of file1.close(), close( file1 ).

Some important similarities.

cgoldberg

#!/bin/bash
# download and install latest geckodriver for linux or mac.
# required for selenium to drive a firefox browser.

install_dir="/usr/local/bin"
json=$(curl -s https://api.github.com/repos/mozilla/geckodriver/releases/latest)
if [[ $(uname) == "Darwin" ]]; then
    url=$(echo "$json" | jq -r '.assets[].browser_download_url | select(contains("macos"))')
elif [[ $(uname) == "Linux" ]]; then
    url=$(echo "$json" | jq -r '.assets[].browser_download_url | select(contains("linux64"))')

pinge

How to install Ubuntu 14.04.1 LTS 64-bit on a MacBook Pro Retina 15" Mid 2014 (11,3)

download

• Ubuntu 14.04 Desktop 64-bit ISO (default, non-Mac version)
  http://www.ubuntu.com/download/desktop
• UNetbootin
  http://unetbootin.sourceforge.net/
• Broadcom 802.11 Linux STA wireless driver source dependencies
  http://packages.ubuntu.com/trusty/all/dkms/download

fransua

from math import log, exp


def ascii_plot (ydata, xdata=None, logscale=False, pch='o', title='plot',
                xlabel='X', ylabel='Y', width=72, height=50):
    """
    Curve (ASCII format).

    :param ydata: list of values to be plotted
    :param None xdata: x coordinate corresponding to ydata. If None will range