MATLAB Machine Learning Recipes: A Problem-Solution Approach

© Michael Paluszek and Stephanie Thomas  2019

Michael Paluszek and Stephanie ThomasMATLAB Machine Learning Recipeshttps://doi.org/10.1007/978-1-4842-3916-2_2

2. Representation of Data for Machine Learning in MATLAB

Michael Paluszek¹  and Stephanie Thomas¹

(1)

Plainsboro, NJ, USA

 

2.1 Introduction to MATLAB Data Types

2.1.1 Matrices

By default, all variables in MATLAB are double precision matrices. You do not need to declare a type for these variables. Matrices can be multidimensional and are accessed using 1-based indices via parentheses. You can address elements of a matrix using a single index, taken column-wise, or one index per dimension. To create a matrix variable, simply assign a value to it, such as this 2x2 matrix a:

 >> a = [1 2; 3 4];