ernesthan

## postgres-brew.md

      
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                ernesthan
                / postgres-brew.md
            
            
              Created
              September 10, 2020 05:35
                — forked from ibraheem4/postgres-brew.md
            
              
                Installing Postgres via Brew (OSX)
              
          
    Installing Postgres via Brew

Pre-Reqs

Brew Package Manager
In your command-line run the following commands:

brew doctor
brew update


## libraries.R
### Source: https://stackoverflow.com/questions/4090169/elegant-way-to-check-for-missing-packages-and-install-them

list.of.packages <- c(
  "tidyverse",          # Packages included: ggplot2, purr, tibble, dplyr, tidyr, stringr, readr, forcats
  "readxl",             # read_excel()
  "writexl",            # write_xlsx()
  "stargazer",
  "ggthemes",
  "usethis"
)

## TelegramSendMessage.R
## Requires HTTR package
if (!require('httr')) install.packages('httr'); library('httr')

## Replace following variables: DEFAULT_CHAT_ID, DEFAULT_BOT_TOKEN

sendMessage <- function(
  text=stop("Text parameter is required!"),
  chat_id=DEFAULT_CHAT_ID,
  bot_token=DEFAULT_BOT_TOKEN,
  ...

## mac-cpu-model.sh
sysctl -n machdep.cpu.brand_string

# Source: https://www.tekrevue.com/tip/find-mac-cpu-model/

## incl_external.Rmd
<<external-code, cache=FALSE>>=
read_chunk('foo-bar.R')
@

## laravel-clear-cache
php artisan config:clear
php artisan cache:clear

## laravel-lazy-load.php
DB::listen(function($query) {
var_dump($query->sql);
});

// Retrieves all notes in card first
$card->notes->first();
$card->notes()->first(); // Build query first then retrieve with Limit 1

//Note that Laravel caches the query result, so first case may be better sometimes.

## LogisticFunction.r
# Logistic Function
logistic <- function(x, L=1, k=1, sigmoidMid=0) {
  return(L / (1 + exp(-k*(x-sigmoidMid))))
}

# Testing the function
x = seq(from=-10, to=10, by=1)
plot(x=x, y=logistic(x))
lines(x=x, y=logistic(x))

## changeRDefaultLocale.sh
defaults write org.R-project.R force.LANG en_US.UTF-8

## config.cson
editor:
  softWrap: true
	### Source: https://stackoverflow.com/questions/4090169/elegant-way-to-check-for-missing-packages-and-install-them

	list.of.packages <- c(
	"tidyverse", # Packages included: ggplot2, purr, tibble, dplyr, tidyr, stringr, readr, forcats
	"readxl", # read_excel()
	"writexl", # write_xlsx()
	"stargazer",
	"ggthemes",
	"usethis"
	)
	## Requires HTTR package
	if (!require('httr')) install.packages('httr'); library('httr')

	## Replace following variables: DEFAULT_CHAT_ID, DEFAULT_BOT_TOKEN

	sendMessage <- function(
	text=stop("Text parameter is required!"),
	chat_id=DEFAULT_CHAT_ID,
	bot_token=DEFAULT_BOT_TOKEN,
	...
	sysctl -n machdep.cpu.brand_string

	# Source: https://www.tekrevue.com/tip/find-mac-cpu-model/
	DB::listen(function($query) {
	var_dump($query->sql);
	});

	// Retrieves all notes in card first
	$card->notes->first();
	$card->notes()->first(); // Build query first then retrieve with Limit 1

	//Note that Laravel caches the query result, so first case may be better sometimes.
	# Logistic Function
	logistic <- function(x, L=1, k=1, sigmoidMid=0) {
	return(L / (1 + exp(-k*(x-sigmoidMid))))
	}

	# Testing the function
	x = seq(from=-10, to=10, by=1)
	plot(x=x, y=logistic(x))
	lines(x=x, y=logistic(x))