답변:Walter Roberson2018년 3월 25일 채택된 답변:Walter Roberson Suppose I have a matrix A and suppose I want to create a new matrix from 1st, 3rd, and 4th column of A. Is there any compact way to do this?
[my_vec_For_example_num_11] = find(matrix_test==11)% I want to enter a number from 1 to 20 and take out its column i_want_vec_11=matrix_test(1:end,11)%That should be the result, The solution does not have to be with "find" ...
i have matrix of size 50*1000. i want to extract the column in the interval of 3.(1,4,7,10 etc..). when i used for loop, it overriding column every iteration. but i need to store column extracted in each iteration to stored in new matrix. could you...
图像配准的目标是找到一个变换矩阵(Transform matrix),将不同图像中的相应特征或点匹配在一起,以便它们在同一坐标系下对齐。 medical-image-registrationwww.mathworks.com/help/medical-imaging/ug/medical-image-registration.html 图像配准大致可以分为两类: 刚性配准(Rigid registration) 非刚性配准(Non-rigid reg...
iscolumn(x)、isrow(x) 判断是否为列向量、行向量 isvector()、ismatrix() 判断是否为向量、矩阵 isempty(x)、isscalar() 判断是否为空向量、单个数值 A = [1]; U = repmat(A, 2, 3); % 结果 U = [1 1 1 1 1 1] repmat(A, 1, 2) % [1, 1] repmat(A, 2, 1) % [1; 1] ...
Given a matrix A of shape (m,n), I want to find the minimum value in the last column of A and extract the row that contains that minimum. How can I do that? 댓글 수: 0 댓글을 달려면 로그인하십시오. ...
select the “Matrix Columns” checkbox and press the “Edit” button in the “Objects” group. The following window will appear. In this window, select the columns with index of 1 to 700 and press the OK button.To extract the data to Y, repeat the process selecting only the column 701...
Example 3: Using TEXTREAD to read in text and numeric data from a file with headers % This command skips the 2 header lines at the top of the file % and reads in each column to the 4 specified outputs [c1 c2 c3 c4] = textread('sample_file2.txt','%s %s %s %s','headerlines',2...
trainingImages is a 200-by-10 cell array of training image file names; each column contains both the positive and negative training images for a digit. trainingLabels is a 200-by-10 matrix containing a label for each image in the trainingImage cell array. The labels are logical values indic...
If not, please see the code below:function B=shrink(A)[~,pivot]=rref(A);B=A(:,pivot);end**Create your Function which begins with the lines:function [p,z]=proj(A,b)formatA=shrink(A);m=size(A,1);p=[];z=[];The inputs are an m n matrix A and a column vector b. Your ...