njvack

import ast
import math

SAFE_FX = {
    'exp': math.exp,
}

SAFE_NODES = set(
    (ast.Expression,
    ast.Num,

njvack

Simple canvas-based color converter

To answer this StackOverflow question I wrote this — a small solution based on a never-rendered <canvas> element. It fills a 1-pixel canvas with the provided fill-style, and then reads the RGBA values of that pixel. It will work with any CSS color -- name, rgba(), hex, or even something more exotic like a gradient or pattern. Invalid colors are always returned as transparent black. Transparent colors are treated as painted on a newly-cleared canvas.

It's been tested in modern-ish versions of IE, Chrome, Safari, and Firefox. The API is:

color_convert.to_hex(color)   # Converts color to a hex-based RGB triple; to_hex('red') returns '#ff0000'
color_convert.to_rgba(color)  # Converts color to an rgba() string; to_rgba('red') returns 'rgba(255,0,0,1)'

njvack

//************************************************
// 
// Catmull-Rom Spline to Bezier Spline Converter
//
// 
// This is an experimental extension of the SVG 'path' element syntax to 
// allow Catmull-Rom splines, which differs from Bézier curves in that all
// defined points on a Catmull-Rom spline are on the path itself.
// 
// This is intended to serve as a proof-of-concept toward inclusion of a 

njvack

#!/usr/bin/env python

"""
Takes a REDCap CSV file and splits it into:

* A file for each event
* A file for repeated instruments in events where they happen

So, if your data has events 'scr,' 'pre,' and 'post', and 'pre' and 'post'
each have a repeated instument called 'meds', you can expect

njvack

#!/usr/bin/env ruby
require 'rubygems'
require 'mysql2'

Mysql2::Client.default_query_options.merge!(:as => :array)
conn = Mysql2::Client.new(:host => 'localhost', :username => 'user', 
  :password => 'pw', :database => 'db')

tables = conn.query("SHOW TABLES").map {|row| row[0] }

njvack

"""
Generates an array blocks * block_len long, containing 1 and 2.
It's shuffled such that there can never be more than block_len
consecutive repetitions of either value.
"""
import numpy as np

blocks = 100
block_len = 8
groupnums = (np.arange(blocks * block_len) % 2) + 1

njvack

UW-Madison TechPartners Slack Code of Conduct

Welcome!

This Slack group is for any and everyone involved in tech at UW-Madison. Students, staff, faculty, alumni, and emeriti are all welcome. We're here to share tips and tricks, debate policy, but more importantly: to be a community.

The current admins are:

• Nate Vack

njvack

Copyright (c) 2020 Nathan Vack

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

njvack

# Binary builds
tap "homebrew/cask"
# Lets me get at things like sequel-pro-nightly
tap "homebrew/cask-versions"

# mas -> "Mac App Store"
brew "mas"
mas "Xcode", id: 497799835

brew "imagemagick"

njvack

Keybase proof

I hereby claim:

• I am njvack on github.
• I am njvack (https://keybase.io/njvack) on keybase.
• I have a public key ASB6TTOovVMHwUxq7IPCufRUK8WWK-MQlLVNO5USZ4C1lQo

To claim this, I am signing this object: