willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

byzheng

#' Read xlsx files
#'
#' @param file The path to xlsx file
#' @param keep_sheets A vector of sheet name
#' @param header Whether include the head in the sheet
#' @param empty_row Whether to remove the empty rows
#' @export
xlsxToR <- function(file, keep_sheets = NULL, header = TRUE, empty_row = TRUE) 
{  
    suppressWarnings(file.remove(tempdir()))

arunsrinivasan

# here's some sample data to test it out
require(data.table)
require(dplyr)
set.seed(45)
DF <- data.frame(x=sample(3, 25, TRUE), y=1:25, z=26:50)
DP <- tbl_df(DF) # for DPLYR data.frame object
DT <- data.table(DF)

# 1) row-wise subset (usually based on conditions):

brodieG

# Because there is no way to tell data.table 
# "interpret this variable as a column name", it's possible to come up
# with corner cases.  I'll grant these are unlikely to occur in day
# to day use, but any function that uses `data.table` must account for
# them

# Low odds, and yes, there are workarounds, but this is
# what I mean by you have to think carefully to avoid 
# corner cases

Pakillo

• Git and GitHub (Hadley Wickham): http://r-pkgs.had.co.nz/git.html

• R development using GitHub (Gabor Csardi): https://github.com/MangoTheCat/github-workshop

• Working with RStudio, Git, GitHub (STAT 545): http://stat545-ubc.github.io/git00_index.html

• Version control with git (R. Fitzjohn): http://nicercode.github.io/2014-02-13-UNSW/lessons/70-version-control/

• Version control with Git (Software Carpentry): http://software-carpentry.org/v5/novice/git/index.html

Pakillo

Notes:

• I've tried to break up in to separate pieces, but it's not always possible: e.g. knowledge of data structures and subsetting are tidy intertwined.

• Level of Bloom's taxonomy listed in square brackets, e.g. http://bit.ly/15gqPEx. Few categories currently assess components higher in the taxonomy.

Programming R curriculum

Data structures

upsuper

#!/bin/bash

SERIAL="00000000"

echo "Looking for device with serial $SERIAL..."
for d in /sys/bus/usb/devices/*-*; do
    if [[ -f "$d/serial" ]]; then
        serial=$(<"$d/serial")
        if [[ "$serial" = "$SERIAL" ]]; then
            device="$(basename $d)"

nacnudus

library(data.table)

?`[.data.table`

DT <- data.table(x=rep(c("b","a","c"),each=3), y=c(1,3,6), v=1:9)
X  <- data.table(x=c("c","b"), v=8:7, foo=c(4,2))

colnames(DT)
# [1] "x" "y" "v"

fuzziebrain

@echo off
REM ########################################################################
REM #  (@)sql.bat
REM #
REM #  Copyright 2014 by Oracle Corporation,
REM #  500 Oracle Parkway, Redwood Shores, California, 94065, U.S.A.
REM #  All rights reserved.
REM #
REM #  This software is the confidential and proprietary information
REM #  of Oracle Corporation.

hjbotha

#! /bin/bash

# NEWLY ADDED BACKUP FUNCTIONALITY IS NOT FULLY TESTED YET, USE WITH CARE, ESPECIALLY DELETION
# Developed for DSM 6 - 7.0.1. Not tested on other versions.
# Steps to install
# Save this script in one of your shares
# Edit it according to your requirements
# Backup /usr/syno/share/nginx/ as follows:
# # cd /usr/syno/share/
# # tar cvf ~/nginx.tar nginx