hobson

ANACONDA_URL=https://repo.anaconda.com/archive
ANACONDA_PATTERN='Anaconda3-202[0-9][.][0-9]{1,2}-Linux-x86_64[.]sh'
ANACONDA_FILENAME=$(curl "$ANACONDA_URL/index.html" | grep -E -o "$ANACONDA_PATTERN" | tail -n 1)
ANACONDA_URL=$ANACONDA_URL/$ANACONDA_FILENAME
echo "Anaconda Installer URL: $ANACONDA_INSTALLER_URL"


# anaconda
sudo apt-get install libgl1-mesa-glx libegl1-mesa libxrandr2 libxrandr2 libxss1 libxcursor1 libxcomposite1 libasound2 libxi6 libxtst6
wget "$ANACONDA_URL" -O $HOME/install-anaconda.sh

hobson

""" White balance (color balance)

Adjust colors to flatten color histogram peaks and broaden color spectrum for better color contrast.
This is also sometimes called white balancing or probability distribution whitening.

References:
  - Color balance algorithm in [OpenCV](http://www.morethantechnical.com/2015/01/14/simplest-color-balance-with-opencv-wcode/)
  - Ported to python by [DavidYKay](https://github.com/DavidYKay)
  - Optimized (`O(N^2)` -> `O(N)`) by @alxrsngartn funded in part by NSF grant number 1722399 to [Aira](http://github.com/aira) (@jmeyers-aira)
  - Incorporated into [nlpia](github.com/aira/nlpia) by @hobson

hobson

r"""Faulty positive semidefinite matrix generator

Using a normally distributed random matrix it's pretty
rare that you'll get a semidefinite matrix from the product,
even for low dimensions. For 3 dimensions you have about a 0.001%% yield

>>> pos_semi_matrices = generate_positive_semidefinite_matrices(num_samples=1000)
  6.7% were positive semidefinite and not positive definite
 45.5% were positive definite
 52.2% were positive semidefinite

hobson

hobson

"""Attempt to confirm results in paper by Miller and Sanjurjo 
["Confused by the Gambler's and Hot Hand Falacy?..."](http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2627354)
Calculate the probability of a streak of length 2 in a coin flip 
for a small sequence of attempts ("finite sequence of iid Bernoulli trials").
The fencepost counting issue means you have to ignore one of the flips.
Perhaps this is what causes Miller and Sanjurjo to get 0.4 instead of 0.5.
"the conditional relative frequency... is 0.4 not 0.5"

"""
from random import randint

hobson

def walk_level(path, level=1):
    """Like os.walk, but takes `level` kwarg that indicates how deep the recursion will go.

    Notes:
      TODO: refactor `level`->`depth`

    References:
      http://stackoverflow.com/a/234329/623735

    Args:

hobson

#!/bin/sh
SHORTCUT="[Desktop Entry]
Name=Sublime Text 2
Comment=Edit text files
Exec=/usr/local/sublime-text-2/sublime_text
Icon=/usr/local/sublime-text-2/Icon/128x128/sublime_text.png
Terminal=false
Type=Application
Encoding=UTF-8
Categories=Utility;TextEditor;"

hobson

#!/bin/sh

# Manually patch and compile bash for systems like FC16 that don't have shellshock protection 
# availalbe through their package managers.

# sudo yum install patch byacc texinfo bison autoconf gettext ncurses-devel

VERSION1=4
VERSION2=2
VERSION_PATCH=52

hobson

_autorebase                     000013-1
_update-info-dir                00236-1
alternatives                    1.3.30c-10
autobuild                       5.3-1
autoconf                        13-1
autoconf2.1                     2.13-12
autoconf2.5                     2.69-2
automake                        9-1
automake1.13                    1.13.4-1
automake1.14                    1.14-1

hobson

# install pip & virtualenv
# create a virtual environment for your webapp
# install django in the new virtualenv

cd ~/tmp
PYVE=2.7
PYVER=2.7.3
STVER=0.6c11
# go directly to the source to get the latest and greatest
wget http://pypi.python.org/packages/$PYVE/s/setuptools/setuptools-$STVER-py$PYVE.egg#md5=fe1f997bc722265116870bc7919059ea