1© 2015 The MathWorks, Inc.

Introduction to MATLAB

Laura Dempsey

2

Agenda

▪ What is MATLAB?

▪ Analysis Example: Bike Count Data

– Importing

– Exploring

– Sharing Results

▪ Signal Processing Example: Quick Start

▪ Where to get Help and Learn MATLAB

3

Key Takeaways

▪ INTEGRATION: MATLAB can be used at all stagesof your work.

▪ AUTOMATION: Save time and avoid repetition.

▪ INFORMATION: Many resources available to helpyou to learn basic and advanced MATLAB concepts.

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What is MATLAB?

▪ High-level computer language designed for

scientists and engineers.

▪ Combination of an easy-to-use, interactive

desktop environment with matrix-based

language.

▪ Extendable using toolboxes that provide

targeted functionality for specific types of

analysis or area of expertise.

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Technical Computing Workflow

Files

Software

Hardware

Access

Code &

Applications

Text files, spreadsheets

Images, Video and Audio

From the web, JSON, HTTP Messaging

Database or Datafeed

Devices

Out of Memory Data

6Automate

Technical Computing Workflow

Reporting and

Documentation

Outputs for Design

Deployment

ShareExplore & Discover

Files

Software

Hardware

Access

Code &

Applications

Data Analysis

& Modeling

Algorithm

Development

Application

Development

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Example: Bicycle Traffic Analysis

Bicycle

Counter

Harvard

University

City

Centre

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Example: Bicycle Traffic Analysis

▪ Bicycle count for journeys toward

Harvard (Westbound) and toward

City Centre (Eastbound).

▪ Counts recorded every 15 minutes

▪ Data contains:

– Timestamp

– Day of the week

– Counts separated by journey direction

– Total bicycle counts per 15 minutes

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Fundamental Data Types

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Importing Data: Interactive or Generate Code

Files

Software

Hardware

Access

Code &

Applications

▪ Interactively import data with the Import Tool:

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Compare with Weather Data

▪ Historical weather data for Boston, MA.

▪ Same time period as bicycle traffic data.

▪ We have data for:

– Average wind speed (MPH)

– Precipitation (inches per day)

– Average daily temperature (ºF)

– Maximum daily temperature (ºF)

– Minimum daily temperature (ºF)

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Are bicycle counts related to the weather?

▪ Live Editor allows for quick and easy exploration of dataExplore & Discover

Data Analysis

& Modeling

Algorithm

Development

Application

Development

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▪ Export script as DOCX/PDF/HTML/LaTeX

Sharing Code and Applications

Reporting and

Documentation

Outputs for Design

Deployment

Share

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▪ Create stand-alone application for MATLAB and

Non-MATLAB users.

Sharing Code and Applications

Reporting and

Documentation

Outputs for Design

Deployment

Share

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Quick Starts to Complex Tasks

▪ MATLAB Apps

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MATLAB Onramp

▪ Get started with MATLAB for free

▪ Two-hour interactive training

course

– Hands-on experience.

– Work through examples and exercises.

– Immediate feedback.

▪ Access directly from MATLAB:

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MATLAB Training – Online and in the Classroom

▪ Deep Learning Onramp

– 95 minutes of free material.

– Get started with Deep Learning.

▪ Other self-paced, online courses:

https://matlabacademy.mathworks.com/

▪ Classroom training available:

– You come to us, or we come to you.

https://matlabacademy.mathworks.com/

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MATLAB Central

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MATLAB Central

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Summary and Benefits

▪ INTEGRATION: Single software for entire workflow

▪ AUTOMATION: Speed up repetitive tasks and generate code

▪ INFORMATION: MATLAB Central on MathWorks website, as well asonline and classroom training is available

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Upcoming Agenda

▪ 14:00-15:00

– Intro to Simulink

and Stateflow

– Software Development

Practises with MATLAB

▪ 15:45-17:00

– Predictive Maintenance

with MATLAB