rpietro

-- example http://clarkdave.net/2013/06/what-can-you-do-with-postgresql-and-json/

createdb json_test
psql json_test

CREATE TABLE books ( id integer, data json );

INSERT INTO books VALUES (1, '{ "name": "Book the First", "author": { "first_name": "Bob", "last_name": "White" } }'); 

INSERT INTO books VALUES (2, '{ "name": "Book the Second", "author": { "first_name": "Charles", "last_name": "Xavier" } }'); 

rpietro

?unlist # Given a list structure ‘x’, ‘unlist’ simplifies it to produce a vector which contains all the atomic components which occur in ‘x’.

install.packages('', repos='http://cran.us.r-project.org')


require(plyr)
headTail(bnames)

rpietro

<link href='http://fonts.googleapis.com/css?family=Baumans' rel='stylesheet' type='text/css'>
<style type="text/css">
.title-slide hgroup > h1{
  font-family: 'Baumans', cursive;
}

<style type="text/css">


.title-slide hgroup > h2{

rpietro

Shortcuts for iPython notebook

Command Mode (press Esc to enable)

Enter: edit mode
Shift-Enter: run cell, select below
Ctrl-Enter: run cell
Alt-Enter: run cell, insert below
y: to code
m: to markdown

rpietro

new file - cmd alt n get info - cmd i quick look - cmd y make alias - cmd l make symbolic link - cmd shift l view as list - cmd 2 show invisible files - cmd 4 (custom) swap panes - f2 browse in next pane - f3 rpietro - cmd shift h

rpietro

N-of-1 Design in Education

Ricardo Pietrobon, Uwe Heiss, Mauro Maldonato, Joao Vissoci, Bruno Melo, Jacinto Franco, Seiji Isotani

N-of-1 trials are cross-over trials where the randomization is conducted at the subject rather than the group level. This modification has a number of important implications, among them:

1. Data from individual subjects can be analyzed on their own
2. When putting together data from multiple N-of-1 trials, the synthesis is made following meta-analysis principles

rpietro

is so he is you is it that to at the can could he can you can about with was would we with you had that who he uh are you are of after off every you've are or you're . up be on ebb you'll ing ago toing egg ugh the at ought ed you'd as 00 easy yous

rpietro

# setting a virtual environment and getting django to run

virtualenv --no-site-packages django_hack
source django_hack/bin/activate
cd django_hack 
easy_install django
ls bin 
django-admin.py
django-admin.py startproject django_test
cd django_test 

rpietro

RDF vocabulary

Classes

RDF

rdf:XMLLiteral - the class of XML literal values rdf:Property - the class of properties rdf:Statement - the class of RDF statements

rpietro

# below comes from http://people.csail.mit.edu/ichuang/edx/

cd
mkdir mitx-vagrant
cd mitx-vagrant
mkdir data

# download edx4edx_lite https://github.com/mitocw/edx4edx_lite into data directory 
# download mitxvm-edx-platform-02sep13a.box 
# http://people.csail.mit.edu/ichuang/edx/download.php?file=mitxvm-edx-platform-02sep13a.box