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#!/usr/bin/env bash

# source: https://sharats.me/posts/shell-script-best-practices/

set -o errexit
set -o nounset
set -o pipefail
if [[ "${TRACE-0}" == "1" ]]; then
    set -o xtrace
fi

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from blankly import Alpaca, CoinbasePro # supports stocks, crypto, and forex
import numpy as np
from math import sqrt


def cagr(start_value: float, end_value: float, years: int):
    return (end_value / start_value) ** (1.0 / years) - 1

def sharpe(account_values: np.array, risk_free_rate, annualize_coefficient):
    diff = np.diff(account_values, 1) / account_values[1:] # this gets our pct_return in the array

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# Author: Tom Dupre la Tour
#
# License: BSD 3 clause
import time
import sys

try:
    import annoy
except ImportError:
    print("The package 'annoy' is required to run this example.")

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# Rails 6.0.2.3
# 'Behavior' = std Rails scaffold with one name:string attribute.
# rails db:migrate = no problem.
# rails test = 2 fails below. other controllers (~60, identical except for object name) pass.

Error:
BehaviorsControllerTest#test_should_destroy_behavior:
NoMethodError: undefined method `count' for ActionDispatch::IntegrationTest::Behavior:Module
    test/controllers/behaviors_controller_test.rb:42:in `block in <class:BehaviorsControllerTest>'
    test/controllers/behaviors_controller_test.rb:42:in `block in <class:BehaviorsControllerTest>'

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	31: from -e:1:in `<main>'
	30: from /home/<myname>/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:72:in `require'
	29: from /home/<myname>/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:72:in `require'
	28: from /home/<myname>/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:55:in `load'
	27: from /home/<myname>/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:55:in `load'
	26: from /home/<myname>/projects/ideas/factory-inabox/v20200501/bin/rails:9:in `<top (required)>'
	25: from /home/<myname>/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/zeitwerk-2.3.0/lib/zeitwerk/kernel.rb:23:in `require'
	24: from /home/<myname>/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
	23: from /home/<myname>/.rbenv/versions/2.5.1/lib/ru

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Bundler, the underlying system Vagrant uses to install plugins,
reported an error. The error is shown below. These errors are usually
caused by misconfigured plugin installations or transient network
issues. The error from Bundler is:

conflicting dependencies fog-core (~> 1.43.0) and fog-core (= 1.45.0)
  Activated fog-core-1.45.0
  which does not match conflicting dependency (~> 1.43.0)

  Conflicting dependency chains:

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Original notes by James Clear

• Do the math yourself. Too many people take numbers from unreliable sources.

• There are 4 levels of learning: Awareness, Awkwardness, Application, Assimilation

• Customer-Solution Profit: Know your customers incredibly well and create a solution specifically for them.

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import dash
import dash_core_components as dcc 
import dash_html_components as html 

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']

app = dash.Dash(__name__, external_stylesheets=external_stylesheets)

app.layout = html.Div(children=[
    html.H1(children='Hello Dash'),

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import sys
reload(sys)
sys.setdefaultencoding("utf-8")
import requests
import bs4
import zipcode
import threading
import re
import json
import time

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# How to build your own NN classifier in r
# source: http://www.r-bloggers.com/build-your-own-neural-network-classifier-in-r/
# reference: http://junma5.weebly.com/data-blog/build-your-own-neural-network-classifier-in-r

# project:
# 1) build simple NN with 2 fully-connected layers
# 2) use NN to classify a dataset of 4-class 2D images & visualize decision boundary.
# 3) train NN with MNIST dataset

# ref: stanford CS23 source: http://cs231n.github.io/