jackwasey

#' @title list all functions in a package
#' @param pkg character string containing package name
#' @return character vector of functions in given package
#' @export
lsf <- function(pkg) {
  
  envirName <- paste("package", pkg, sep = ":")
  everything <- ls(pos = envirName, all.names = TRUE)
  
  funcs <- c()

jackwasey

lintr::lint_package(linters = lintr::default_linters[names(lintr::default_linters) != "object_camel_case_linter"])

jackwasey

//' @title Sort using STL
//' @description if compiler flags and standard library support is available
//'   (only tested on glibc), OpenMP, then this will use a parallel sort
//'   algorithm which is significantly faster. It doesn't however deal with NA
//'   values. TODO: handle NA values.
//' @param x vector of strings. In the current implementation, NA is completely
//'   ignored, so is probably converted to "NA"
//' @examples
//' \dontrun{

jackwasey

library(fastmatch)
library(microbenchmark)

WORDS <- read.table("https://dotnetperls-controls.googlecode.com/files/enable1.txt",
                    stringsAsFactors = FALSE)[[1]]

words_factor <- as.factor(WORDS)

# generate 100 sentences of between 5 and 15 words:
SENTENCES <- lapply(c(1:100), sample, x = WORDS, size = sample(c(5:15), size = 1))

jackwasey

Introduction

• C-a == Ctrl-a
• M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

jackwasey

#!/bin/sh

# This assumes you have access to the system via SSH already, and need 
# remote VNC access as the same user, and you want only the primary display.
export DISPLAY=:0

# Encoded password with http://www.motobit.com/util/base64-decoder-encoder.asp
export VNC_PASSWORD="dm5jX3Bhc3N3b3JkNzE="  # vnc_password71
export VNC_PASSWORD="dm5jX3Bhc3M=" # vnc_password (a character limit is enforced?)
# Sadly many common VNC clients don't support encryption.

jackwasey

Installing tmux-256color for macOS

• macOS 10.15.5
• tmux 3.1b

macOS has ncurses version 5.7 which does not ship the terminfo description for tmux. There're two ways that can help you to solve this problem.

The Fast Blazing Solution

Instead of tmux-256color, use screen-256color which comes with system. Place this command into ~/.tmux.conf or ~/.config/tmux/tmux.conf(for version 3.1 and later):

jackwasey

#256 colors in putty, tmux/screen and vim There is a detailed answer on stackoverflow. If you are looking for a short one, here it is.

• putty

  Set Connection -> Data -> Terminal-type string to xterm-256color

• tmux

Add this line to ~/.tmux.conf

jackwasey

Overview

This is a bash script that will automatically turn your wifi off if you connect your computer to an ethernet connection and turn wifi back on when you unplug your ethernet cable/adapter. If you decide to turn wifi on for whatever reason, it will remember that choice. This was improvised from this mac hint to work with Yosemite, and without hard-coding the adapter names. It's supposed to support growl, but I didn't check that part. I did, however, add OSX notification center support. Feel free to fork and fix any issues you encounter.

Most the credit for these changes go to Dave Holland.

Requirements

• Mac OSX 10+
• Administrator privileges

jackwasey

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD