Octave/MATLAB resources

Andrew Ng in his Corsera course for machine learning provides the following links for resources for Matlab. I have had a terrible time remembering all the syntaxes in matlab (because they are so natural, no?) I’m putting them here so that I can access them later. The credit goes to Andrew Ng.

Octave Resources

At the Octave command line, typing help followed by a function name displays documentation for a built-in function. For example, help plot will bring up help information for plotting. Further documentation can be found at the Octave documentation pages.

MATLAB Resources

At the MATLAB command line, typing help followed by a function name displays documentation for a built-in function. For example, help plot will bring up help information for plotting. Further documentation can be found at the MATLAB documentation pages.

MathWorks also has a series of videos about various MATLAB features:

Introduction to MATLAB

Learning Module Learning Goals

What is MATLAB? Introduce MATLAB

The MATLAB Environment Navigate the command line, workspace, directory, and editor

MATLAB Variables Use the assignment operator to define scalar variables

MATLAB as a Calculator Perform arithmetic calculations with scalars and functions using MATLAB syntax and order of operations.

Mathematical Functions Use MATLAB variables for input and output to functions. Examples include: COS, SIN, EXP, and NTHROOT.

Vectors

Learning Module Learning Goals

Creating Vectors via Concatenation Create vectors by entering individual elements

Accessing Elements of a Vector Access specific elements of a vector

Vector Arithmetic Perform arithmetic calculations with vectors including element-wise operations

Vector Transpose Use the transpose operator to convert between row and column vectors

Creating Uniformly Spaced Vectors (The Colon Operator) Use the colon operator syntax to create vectors given the starting and ending values and the size of the interval

Creating Uniformly Spaced Vectors (The LINSPACE Function) Use the LINSPACE function to create a vector.

Visualization

Learning Module Learning Goals

Line Plots Create a line plot of a vector and customize plot markers and colors

Annotating Graphs Label axes, add a title, and add a legend to a plot

Matrices and Arrays

Learning Module Learning Goals

Creating Matrices Create matrices by directly entering scalars

Array Creation Functions Create larger matrices and vectors with built in MATLAB functions such as ZEROS and EYE

Accessing Elements of an Array Access elements of an array including entire columns or rows using row-column indexing.

Array Size and Length Use built-in functions to determine array dimensions

Concatenating Arrays Build larger arrays from smaller ones

Matrix Multiplication Perform matrix multiplication and interpret error messages related to incompatible dimensions.

Programming

Learning Module Learning Goals

Using the MATLAB Editor Write a script in the MATLAB Editor, break code into sections to execute, and find help on functions

Logical Operators Use relational and logical operators to create logical variables for program control

Conditional Data Selection Access and change elements for a vector the meet a specified criteria

If-Else Statements Use if-else statements to control which lines of code are evaluated

For Loops Repeat a sequence of commands a specified number of times

While Loops Repeat a sequence of commands while a specified condition is true