Can we have a mixed-type matrix in Matlab…and how?


I'm trying to write a function with a matrix (specifically a matrix) as the output, the rows of which show a double-type variable and a binary 'status'. For no real reason and just out of curiosity, I wonder if there is a way to have the rows to have different types.

Many Thanks


MATLAB offers two viable options for storing mixed data types:

<h3>Cell arrays</h3>

You can look at a <a href="http://www.mathworks.com/help/matlab/cell-arrays.html" rel="nofollow">cell array</a> as a special matrix where and each element (called <em>cell</em>) can be of a different type (and size). For instance:

C = {2, 'Hello'}

is a cell array that stores both a double and a string.


<a href="http://www.mathworks.com/help/matlab/structures.html" rel="nofollow">Structures</a> can also store values of different data types and sizes, each in a different <em>field</em>. For example, the information in the cell array above can be represented as a structure in the following way:

S.count = 2 S.name = 'Hello'

<br /> Recommendation:<br /> It seems that a struct looks more elegant for your needs; I suppose you'll have a field called status storing a boolean value and a field called number storing a double. For multiple values you can store a vector of booleans in status and a vector of doubles in number. Alternatively you can have an array of structs holding one boolean and one double each.


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