In this video, you’ll learn how to take output from a function or multiple functions to create a vector. By creating a vector from a single output or multiple outputs, you can perform operations and functions o
I have a 1e6 vector called A and I need to generate another vector called B in this way: B=[A(1); A(10); A(20); A(30)...;A(1e6)]; How can I do it in a simple way? Thank you all :) 댓글 수: 0 댓글을 달려면 로그인...
解决Matlab遇到的svmtrain (line 234) Y must be a vector or a character array. 在使用MATLAB进行SVM分类器训练时,有时会出现以下错误提示:svmtrain (line 234) Y must be a vector or a character array. 这个错误是由于目标变量Y的类型不正确导致的。本文将介绍如何解决这个问题并提供具体的示例代码。 问...
Syntax x = j:k x = j:i:k A(:,n) A(m,:) A(:) A(j:k) Description 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,...,...
海洋捕食者算法(Marine Predators Algorithm, MPA)是Afshin Faramarzi等人于2020年提出的一种新型元启发式优化算法。该算法是受海洋生物中捕食者和猎物的行为启发,在该算法中,捕食者和猎物均被视为搜索个体,捕食者会搜索猎物.同时猎物会寻找食物,主要以下特点和规则: ...
Matlab中解决出现的错误使用 svmtrain (line 234) Y must be a vector or a character array.问题 目录 解决问题 解决思路 解决方法 解决问题 在写关于SVM时,调用svmtrain 函数,出现错误:错误使用 svmtrain (line 234) Y must be a vector or a character array. 出错 main (line 44) cg(i,j) = svm...
变数也可用来存放向量或矩阵,并进行各种运算,如下例的列向量(Row vector)运算: x = [1 3 5 2]; y = 2*x+1 y = 3 7 11 5 小提示:变数命名的规则 1.第一个字母必须是英文字母 2.字母间不可留空格 3.最多只能有19个字母,MATLAB会忽略多馀字母 ...
L=100;% Interval LengthN=400;% No of pointsx=linspace(0,L,N)';% Coordinate vectordx=x(2)-x(1);% Coordinate step% Parameters for making intial momentum space wavefunction phi(k)ko=2;% Peak momentuma=20;% Momentum width parameterdk=2*pi/L;% Momentum stepkm=N*dk;% Momentum limit...
Class labels, specified as a categorical, character, or string array, logical or numeric vector, or cell array of character vectors. Y must be the same as the data type of SVMModel.ClassNames. (The software treats string arrays as cell arrays of character vectors.) The length of Y must ...
Direct term, returned as a row vector of numbers that specify the coefficients of the polynomial in descending powers ofs. More About collapse all Consider the fractionF(s)of two polynomialsbandaof degreenandm(wherenandmare positive), respectively ...