[PPT] - Coursewrap-upandVersioncontrol PowerPoint Presentation, free download

SLIDE 1

Coursewrap-upandVersioncontrol

NENS230:AnalysisTechniquesinNeuroscience

SLIDE 2

Outline

1. WhentouseMatlab
2. Morepractice
3. VersionControlwithGit/Github
4. Courserecap

SLIDE 3

Outline

1. When'to'use'Matlab'
2. Morepractice
3. VersionControlwithGit/Github
4. Courserecap

SLIDE 4

WhentouseMatlab

Matlabstrengths:

— Fasttodevelopcode — Manybuilt-infunctions — Relativelyeasysyntax — Fastformatrix(array)operations — powerfulvisualization

Matlabweaknesses:

— Slow(comparedtoC,C++,othercompiledlanguages) — Licensesare$$$andannoying.Anyonerunningyourcode musthaveMatlabinstalled — Can’tdevelopstandaloneapplications — Notageneralpurposelanguage

SLIDE 5

ReasonstoChooseMatlab

1. Yourcommunity/labusesitbydefault

(andyouwantyourcodetobeusefultoothers)

biosciences(notbioinformatics)
mechanical,electrical,aerospaceengineering
psychology
manyothers
2. Youwanttoprototypesomethingquickly
3. Exploratorydataanalysis(w/numericaldata)

SLIDE 6

Alternatives

Scientific'Python''

— iPython,scipy,numpy,matplotlib — verypopular,free

R'

— Optimizedforstatistics — Free — Widelyusedbybioinformatics/statisticians

Octave'

— BuilttobeafreeMatlabalternative — CanrunbasicMatlabcode(m-files)withoutanyhassle

Julia'

— NewprojectfromMIT,freeandopensourcealternative. Fewercompromises(fast,simple,free,generalpurpose),but stillverynew.

SLIDE 7

Outline

1. WhentouseMatlab
2. More'practice'
3. VersionControlwithGit/Github
4. Courserecap

SLIDE 8

Chooseyourownadventure

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-094-introduction-to- matlab-january-iap-2010/assignments/

SLIDE 9

Chooseyourownadventure

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-094-introduction-to- matlab-january-iap-2010/assignments/

SLIDE 10

Chooseyourownadventure

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-094-introduction-to- matlab-january-iap-2010/assignments/

SLIDE 11

Outline

1. WhentouseMatlab
2. Morepractice
3. Version'Control'with'Git/Github'
4. Courserecap

SLIDE 12

VersionControl

“PiledHigherandDeeper”byJorgeCham

Soundfamiliar? Therehastobea betterway!

SLIDE 13

VersionControlwith

— Whatisversioncontrol?

— Methodofkeepingtrackofdifferentversionsoftextfiles. Usefulfor: — iterativedevelopment,experimentalcode — sharingcode

— Whatproblemsdoesitsolve?Haveyouever:

Made a change to code, realized it was a mistake and wanted to revert back?
Wanted to share your code, or let other people work on your code?
Lost code or had a backup that was too old?
Had to maintain multiple versions of some code?
Wanted to experiment with a new feature without interfering with working code?
Wanted to see the difference between two (or more) versions of your code?
Wanted to prove that a particular change broke or fixed a piece of code?
Wanted to review the history of some code?
Wanted to submit a change to someone else's code?

http://stackoverflow.com/questions/1408450/why-should-i-use-version-control

SLIDE 14

VersionControlSoftware

Severaloptionsavailable

— Git,SVN,Mercurial

Gitisde-factostandardandubiquitous

OftenusedwithGithub(onlineservicetohostGitrepositories

SLIDE 15

Farmoretocoverthanwehavetimefor.Thisis worthteachingyourself! Severalusefulresources:

— Verysimpleintro:http://try.github.io — Moredetailed:http://git-scm.com/book

SLIDE 16

gitterminology

– Code is stored in a repository (‘repo’) – Working Tree - the directory containing your current code – Commit - When you want to save a snapshot of your project or are finished with some analysis/new feature. – HEAD - The name of the currently checked-out commit

SLIDE 17

startinggit

— CanusethecommandlineoraGUItool(eg:github app) — Startagitrepository: >>> cd /project/folder >>> git init >>> git add ./*.m (or specific files) >>> git commit

SLIDE 18

Gitbasics

http://software-carpentry.org/v5/novice/git/01-backup.html

SLIDE 19

Gitbasics

http://software-carpentry.org/v5/novice/git/01-backup.html

SLIDE 20

Gitbasics

http://software-carpentry.org/v5/novice/git/01-backup.html

SLIDE 21

Demo: ¡git

SLIDE 22