fvbock’s gists

fvbock / cleanup_globals.py

Created September 1, 2011 13:29

clean up the globals to an initial state

	dont_clean = [ 'initial_vars' ]

	def cleanup():
	print dont_clean
	vars_to_free = [ k for k in set( globals().copy() ).difference( initial_vars.union( set( dont_clean ) ) ) ]
	print vars_to_free,
	for c in vars_to_free:
	del globals()[ c ]
	print "cleaned"

fvbock / rolling_sum.sql

Created December 4, 2012 12:58

rolling sum in sql - window aggregates and CTE much faster than subquery or join

	-- table
	-- name number
	-- 1 10
	-- 2 20
	-- 3 10
	-- 4 30
	-- ...

	-- result
	-- name amount

fvbock / func_streams.go

Created March 15, 2013 09:23

functions/io_streams

	package main

	import (
	"fmt"
	"time"
	"math/rand"
	"sort"
	)

fvbock / MemStats.go

Last active August 29, 2015 13:56

	func printMemStats() {
	memstats := new(runtime.MemStats)
	runtime.ReadMemStats(memstats)
	s.Log.Printf("memstats before GC: bytes = %d footprint = %d mallocs = %d frees = %d",
	memstats.HeapAlloc, memstats.Sys, memstats.Mallocs, memstats.Frees)
	}

fvbock / nnCostFunction.m

Created April 21, 2014 01:51

	function [J grad] = nnCostFunction(nn_params, ...
	input_layer_size, ...
	hidden_layer_size, ...
	num_labels, ...
	X, y, lambda)
	%NNCOSTFUNCTION Implements the neural network cost function for a two layer
	%neural network which performs classification
	% [J grad] = NNCOSTFUNCTON(nn_params, hidden_layer_size, num_labels, ...
	% X, y, lambda) computes the cost and gradient of the neural network. The
	% parameters for the neural network are "unrolled" into the vector

fvbock / es_query.json

Created May 27, 2014 13:46

	GET /entries/_search
	{
	"query": {
	"function_score": {
	"query": {
	"filtered": {
	"query": {
	"bool": {
	"must": [
	{

fvbock / .emacs

Created August 9, 2014 01:45

.emacs

	(custom-set-variables
	;; custom-set-variables was added by Custom.
	;; If you edit it by hand, you could mess it up, so be careful.
	;; Your init file should contain only one such instance.
	;; If there is more than one, they won't work right.
	'(TeX-newline-function (quote newline))
	'(auto-image-file-mode t nil (image-file))
	'(blink-cursor-mode nil)
	'(case-fold-search t)
	'(deft-auto-save-interval 120.0)

fvbock / gecko_highcharts.go

Created December 2, 2014 06:37

geckoboard highcharts payload

	type HighChart struct {
	Chart struct {
	Style struct {
	Color string `json:"color,omitempty"`
	} `json:"style,omitempty"`
	RenderTo string `json:"renderTo,omitempty"`
	BackgroundColor string `json:"backgroundColor,omitempty"`
	LineColor string `json:"lineColor,omitempty"`
	PlotShadpw bool `json:"plotShadow,omitempty"`
	} `json:"chart,omitempty"`

fvbock / gist:e4996ca33002dac1c7ae

Last active August 29, 2015 14:10 — forked from dmitshur/gist:6927554

$ ssh -A vm
$ git config --global url."[email protected]:".insteadOf "https://github.com/"
$ cat ~/.gitconfig
[url "[email protected]:"]
	insteadOf = https://github.com/
$ go get github.com/private/repo && echo Success!
Success!

fvbock / gol2.go

Created June 1, 2015 03:14

game of life - section 2

	package main

	import (
	"fmt"
	"math/rand"
	"time"
	)

	type World struct {
	Width int

Florian von Bock fvbock