Ramnath Vaidyanathan ramnathv

## index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="data:application/x-javascript,%28function%28%29%20%7B%0A%20%20%2F%2F%20If%20window%2EHTMLWidgets%20is%20already%20defined%2C%20then%20use%20it%3B%20otherwise%20create%20a%0A%20%20%2F%2F%20new%20object%2E%20This%20allows%20preceding%20code%20to%20set%20options%20that%20affect%20the%0A%20%20%2F%2F%20initialization%20process%20%28though%20none%20currently%20exist%29%2E%0A%20%20window%2EHTMLWidgets%20%3D%20window%2EHTMLWidgets%20%7C%7C%20%7B%7D%3B%0A%20%20%0A%20%20%2F%2F%20See%20if%20we%27re%20running%20in%20a%20viewer%20pane%2E%20If%20not%2C%20we%27re%20in%20a%20web%20browser%2E%0A%20%20var%20viewerMode%20%3D%20window%2EHTMLWidgets%2EviewerMode%20%3D%0A%20%20%20%20%20%20%2F%5Cbviewer%5Fpane%3D1%5Cb%2F%2Etest%28window%2Elocation%29%3B%0A%0A%20%20%2F%2F%20See%20if%20we%27re%20running%20in%20Shiny%20mode%2E%20If%20not%2C%20it%27s%20a%20static%20document%2E%0A%20%20%2F%2F%20Note%20that%20static%20widgets%20can%20appear%20in%20both%20Shiny%20and%20st

## Mithril + Mobx Hello World.markdown

      
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                ramnathv
                / Mithril + Mobx Hello World.markdown
            
            
              Created
              April 28, 2016 17:17
            
              
                Mithril + Mobx Hello World
              
          
    Mithril + Mobx Hello World

A Pen by Ramnath Vaidyanathan on CodePen.
License.

  
## group_mean.R
#' Group Mean
#'
#' @examples
#' iris %>%
#'   group_mean(Species, Petal.Length)
group_mean <- function(tbl, group_var, summary_var){
  tbl %>%
    group_by({{ group_var }}) %>%
    summarize(
      {{ summary_var }} := mean({{ summary_var }})

## index.Rmd
---
title       : Two Column Layout
author      : Ramnath Vaidyanathan
framework   : io2012        # {io2012, html5slides, shower, dzslides, ...}
highlighter : highlight.js  # {highlight.js, prettify, highlight}
hitheme     : solarized_light #
--- .RAW

## Two Column Layout

## Effective_Engineer.md

      
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                ramnathv
                / Effective_Engineer.md
            
            
              Created
              December 28, 2017 18:20
                — forked from rondy/Effective_Engineer.md
            
          
    Effective Engineer - Notes


By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?


They are the people who get things done. Effective Engineers produce results.

Adopt the Right Mindsets


## tweet_reply.md

      
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                ramnathv
                / tweet_reply.md
            
            
              Created
              July 27, 2018 04:38
                — forked from arunsrinivasan/tweet_reply.md
            
              
                automatic indexing vs between() on integer ranges
              
          
    Updated June 16 with latest devel

data.table's automatic indexing:

Generating some data first:
# R version 3.3.0
require(data.table) ## 1.9.7, commit 2433, github
require(dplyr) ## devel, commit 3189, github

  
## README.md

      
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                ramnathv
                / README.md
            
            
              Last active
              July 13, 2018 22:12
            
          
    This is a short demo of how to use brew and knitr in combination with each other to get the best of the templating facilities in brew and the literate programming functions in knitr. The main idea is to write a function brew_knit
# Preprocess template using brew and then run knit on the output
brew_knit <- function(template, params, ...){
 brew::brew(template, envir = list2env(params))
 input = gsub(".Rnwe", '.Rnw', template)
 knitr::knit(input)
}

  
## ab_test.R
# fix required for R versions earlier than 3.1.2
if (R.Version()$minor < "1.2") {
  source("ggplot_fix.R")
}
## Hypothesis Testing and A/B Tests
n <- 10^4
p1 <- 0.05
p2 <- p1 + 0.005
alpha <- 0.05
sd <- sqrt(p1*(1 - p1)/n)

## README.md

      
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              1 fork
            
          
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                ramnathv
                / README.md
            
            
              Created
              January 30, 2014 00:33
            
              
                Creating PDF Version of Slidify Presentations
              
          
    This gist consists of a makefile and a script that can automate the creation of PDFs from Slidify generated HTML slides. The script assumes that the makefile and the script makepdf.js are in the same directory as the Rmd file. The makepdf.js script uses casperjs, a very useful utility to automate tasks that require browser interaction. You may follow the installation instructions on the casperjs website, to make sure that you have all the dependencies correctly installed before trying this out.

  
## gist:2272049
#!/bin/sh
#######################################################
#  UNIX TREE                                          #
#  Version: 2.3                                       #
#  File: ~/apps/tree/tree.sh                          #
#                                                     #
#  Displays Structure of Directory Hierarchy          #
#  -------------------------------------------------  #
#  This tiny script uses "ls", "grep", and "sed"      #
#  in a single command to show the nesting of         #
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<script src="data:application/x-javascript,%28function%28%29%20%7B%0A%20%20%2F%2F%20If%20window%2EHTMLWidgets%20is%20already%20defined%2C%20then%20use%20it%3B%20otherwise%20create%20a%0A%20%20%2F%2F%20new%20object%2E%20This%20allows%20preceding%20code%20to%20set%20options%20that%20affect%20the%0A%20%20%2F%2F%20initialization%20process%20%28though%20none%20currently%20exist%29%2E%0A%20%20window%2EHTMLWidgets%20%3D%20window%2EHTMLWidgets%20%7C%7C%20%7B%7D%3B%0A%20%20%0A%20%20%2F%2F%20See%20if%20we%27re%20running%20in%20a%20viewer%20pane%2E%20If%20not%2C%20we%27re%20in%20a%20web%20browser%2E%0A%20%20var%20viewerMode%20%3D%20window%2EHTMLWidgets%2EviewerMode%20%3D%0A%20%20%20%20%20%20%2F%5Cbviewer%5Fpane%3D1%5Cb%2F%2Etest%28window%2Elocation%29%3B%0A%0A%20%20%2F%2F%20See%20if%20we%27re%20running%20in%20Shiny%20mode%2E%20If%20not%2C%20it%27s%20a%20static%20document%2E%0A%20%20%2F%2F%20Note%20that%20static%20widgets%20can%20appear%20in%20both%20Shiny%20and%20st
	#' Group Mean
	#'
	#' @examples
	#' iris %>%
	#' group_mean(Species, Petal.Length)
	group_mean <- function(tbl, group_var, summary_var){
	tbl %>%
	group_by({{ group_var }}) %>%
	summarize(
	{{ summary_var }} := mean({{ summary_var }})
	---
	title : Two Column Layout
	author : Ramnath Vaidyanathan
	framework : io2012 # {io2012, html5slides, shower, dzslides, ...}
	highlighter : highlight.js # {highlight.js, prettify, highlight}
	hitheme : solarized_light #
	--- .RAW

	## Two Column Layout
	# fix required for R versions earlier than 3.1.2
	if (R.Version()$minor < "1.2") {
	source("ggplot_fix.R")
	}
	## Hypothesis Testing and A/B Tests
	n <- 10^4
	p1 <- 0.05
	p2 <- p1 + 0.005
	alpha <- 0.05
	sd <- sqrt(p1*(1 - p1)/n)
	#!/bin/sh
	#######################################################
	# UNIX TREE #
	# Version: 2.3 #
	# File: ~/apps/tree/tree.sh #
	# #
	# Displays Structure of Directory Hierarchy #
	# ------------------------------------------------- #
	# This tiny script uses "ls", "grep", and "sed" #
	# in a single command to show the nesting of #