However, you might need to use functions that accept cell arrays of character vectors as input arguments, and that do not accept string arrays. To pass data from a string array to such functions, use the cellstr function to convert the string array to a cell array of character vectors. ...
L = length(X)returns the length of the largest array dimension inX. For vectors, the length is simply the number of elements. For arrays with more dimensions, the length ismax(size(X)). The length of an empty array is zero. example ...
streamtube(vertices,width) specifies the width of the tubes in the cell array of vectors, width. The size of each corresponding element of vertices and width must be equal. width can also be a scalar, specifying a single value for the width of all stream tubes. streamtube(vertices) select...
The colon is one of the most useful operators in MATLAB®. It can create vectors, subscript arrays, and specify for iterations. x = j:k creates a unit-spaced vector x with elements [j,j+1,j+2,...,j+m] where m = fix(k-j). If j and k are both integers, then this is sim...
B = sort(A) sorts the elements of A. By default, sort uses ascending sorted order. If A is a vector, then sort(A) sorts the vector elements. If A is a matrix, then sort(A) treats the columns of A as vectors and sorts each column. If A is a multidimensional array, then sort(...
n: Number of columns in the matrix. In the context of creating an array of zeros, thesparameter is not explicitly required, as we are interested in generating a matrix filled with zeros. Theiandjvectors specify the positions of the non-zero elements, andmandndefine the size of the matrix...
To illustrate the difference in behavior, first create an array of complex numbers. A = zeros(2,1); A(1) = 1; A(2) = 0 + 1i A = 1.0000 + 0.0000i 0.0000 + 1.0000i Then create a cell array and assign the elements ofAto it. When you index intoA(1), its value is returned ...
function [apEn,phi] = getApEn(x,varargin) % getApEn estimates the approximate entropy of a univariate data sequence. % % [apEn,phi] = getApEn(x) % % Returns the approximate entropy estimates `apEn` and the log-average % number of matched vectors `phi` for `m` = 2, estimated ...
The motivation behind this setting is to specifically counteract the limitations discussed in the previous section, i.e., weight differently neighboring vectors having the same ordinal patterns but different amplitude variations. In this way, WPE can be also used to detect abrupt changes in noisy or...
zeros(2,3) % 2行3列的全0矩阵 ones(2,3) % 2行3列的全1矩阵 diag([2 3 4]) % (diagonal matrix 对角矩阵) 指定主对角线元素,其它地方都是0 linspace(-5,5) % linear spaced vectors(-5到5之间返回100个均匀间隔点组成的单行矩阵) linspace(-5,5,6) % -5到5之间返回6个均匀间隔点组成的单...