번역 답변:Walter Roberson2019년 4월 8일 채택된 답변:Walter Roberson Suppose I have a matrix of N*N whose first row is, say [0 10 20 30] and first column is [ 0 5 10 15 ] and now i want to genetare the rest of the...
11.Problem 19. Swap the first and last columns Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All other columns should be leftintact. Return the result in matrix B. If the input has one column, the output should...
Lets say I have 24 columns with 8760 rows. In some of the first columns (in some cases 1-5 columns are all NaNs) and last columns (for example 21-24) are 8760 NaNs. Is there some quick way to find the number (index) of the first column(s) where are編集済み:José-...
(Problem 19)Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All other columns should be leftintact. Return the result in matrix B. If the input has one column, the output should be identical to the input. Example:...
Create a 20-by-5 matrix of random integers between 1 and 10. Get rng default % for reproducibility X = randi(10,20,5); Sort the rows of X in descending order and return the top 4 rows. By default, topkrows sorts using the first column of the matrix. For any rows that have equ...
v = priceY(1:10)// v will be a vector with first 10 elements in priceY load dataX //load a data set (a matrix) named dataX v = dataX(1:10) // v will be a 1 by 10 matrix with first 10 elements in first column of dataX ...
MATLAB matrices are indexed using row and column indices. The row indices are specified first, followed by the column indices. For example, the following statement creates a 3x4 matrix and assigns the value 5 to the element in the secondrow and third column:A = [1 2 3 4; 5 6 7 8; ...
The columns of the matrix define the contour lines. Each contour line starts with a column containing Z and N values: Zi — The height of the ithcontour line Ni — The number of vertices in the ithcontour line (xij, yij) — The coordinates of the vertices for the ithcontour line, whe...
Each row in this matrix represents a group. The first column represents the minimum allocation, and the second column represents the maximum allocation to each group. Since the investment in the Energy sector is capped at 80% of the portfolio value, and the investment in the Technology sector ...
SORTROWS(X,COL)sorts the matrix based on the columns specifiedinthe vectorCOL.If an elementofCOLis positive,the corresponding columninXwill be sortedinascending order;ifan elementofCOLis negative,the corresponding columninXwill be sortedindescending order.For ...