size(A) 即返回[A_row,A_col] size(A,1) 即返回A_row size(A,2) 即返回A_col 返回值可以直接使用向量来接收,也可以使用两个常数接收 vector = size(A) [A_r,A_c] = size(A) length(A) 即返回max(A_row,A_col) numel(A) 即返回元素总数 线性索引: MatLab 中
Streamline options, specified as a one- or two-element vector with one of the following forms: step [step,maxvert] step is the step size used to adjust the streamline resolution and determine the vertex locations for which streamline velocity is interpolated. maxvert is the maximum number of ...
X0 may be % a scalar, vector, or matrix. % % X = FMINCON(FUN,X0,A,B,Aeq,Beq) minimizes FUN subject to the linear % equalities Aeq*X = Beq as well as A*X <= B. (Set A=[] and B=[] if no % inequalities exist.) % % X = FMINCON(FUN,X0,A,B,Aeq,Beq,LB,UB) ...
Streamline options, specified as a one- or two-element vector with one of the following forms: step [step maxvert] step is the step size used to adjust the streamline resolution and determine the vertex locations for which streamline velocity is interpolated. maxvert is the maximum number of ...
【Vector】[1 2 3]; [Text] LearningYard; [Matrix] magic(4). We use MATLAB to store them in a 2×2cell array, treating it as a "storage cabinet" for storing information. 代码表述: 新建脚本,我们采用大括号{ }进行cell数组的创建: ...
RB=randn(SearchAgents_no,dim); %Brownian random number vector for i=1:size(gazelle,1) for j=1:size(gazelle,2) R=rand(); r=rand(); if mod(Iter,2)==0 mu=-1; else mu=1; end %--- Exploitation --- if r>0.5 stepsize(i,j)=RB(i,j)*(Elite(...
encodes enough spatial information to visually identify a digit shape while limiting the number of dimensions in the HOG feature vector, which helps speed up training. In practice, the HOG parameters should be varied with repeated classifier training and testing to identify the optimal parameter ...
In MATLAB, we can use the colon operator (:) along with the ?transpose()' function to convert a matrix into a row vector. The step?by?step process to convert a matrix into a row vector using the colon operator ?:' and the ?transpose' function is explained below: Step 1 ? First of...
Remarkably, different marker sizes can be set by using a vector for the marker sizes. Sign in to download full-size image Figure 1.8. Polar scatter plots. Left diagram with default size circle markers. Right diagram with larger filled black circles. The following commands will produce the same...
legend('-1','1','Support Vector') hold off %% SVM网络预测 [predict_label] = svmpredict(test_set,test_set_labels, model); %% 结果分析 % 测试集的实际分类和预测分类图% 通过图可以看出只有一个测试样本是被错分的 figure; hold on; plot(test_set_labels,'o'); plot(predict_label,'r*')...