Search results
I'm currently trying to make a 7x2 matrix and a 3x2 matrix into one 10x2 matrix. what I'd like to do is just "stack" the 2 on top of each other.
- Constructing A Matrix of Data
- Specialized Matrix Functions
- Concatenating Matrices
- Generating A Numeric Sequence
- Expanding A Matrix
- Empty Arrays
If you have a specific set of data, you can arrange the elements in a matrix using square brackets. A single row of data has spaces or commas in between the elements, and a semicolon separates the rows. For example, create a single row of four numeric elements. The size of the resulting matrix is 1-by-4 because it has one row and four columns. A ma...
MATLAB has many functions that help create matrices with certain values or a particular structure. For example, the zeros and onesfunctions create matrices of all zeros or all ones. The first and second arguments of these functions are the number of rows and number of columns of the matrix, respectively. The diag function places the input elements ...
You can also use square brackets to append existing matrices. This way of creating a matrix is called concatenation. For example, concatenate two row vectors to make an even longer row vector. To arrange A and Bas two rows of a matrix, use the semicolon. To concatenate several matrices, they must have compatible sizes. In other words, when you conc...
The colonis a handy way to create matrices whose elements are sequential and evenly spaced. For example, create a row vector whose elements are the integers from 1 to 10. You can use the colon operator to create a sequence of numbers within any range, incremented by one. To change the value of the sequence increment, specify the increment value in ...
You can add one or more elements to a matrix by placing them outside of the existing row and column index boundaries. MATLAB automatically pads the matrix with zeros to keep it rectangular. For example, create a 2-by-3 matrix and add an additional row and column to it by inserting an element in the (3,4) position. You can also expand the size by in...
An empty array in MATLAB is an array with at least one dimension length equal to zero. Empty arrays are useful for representing the concept of "nothing" programmatically. For example, suppose you want to find all elements of a vector that are less than 0, but there are none. The findfunction returns an empty vector of indices, indicating that it di...
Apr 15, 2016 · How can I make a two one-column matrices into a one two-column matrix, for example: to become. This is known as concatenation, in this case it is called horizontal concatenation. In MATLAB you have three options namely [A, B], cat(2,A,B) and horzcat(A,B).
Aug 25, 2019 · Accepted Answer: Star Strider. I want to make a 2 column matrix for my x and y data which consists of 1000 datapoints, I have tried this and it replaces only one column: x= [0 1 2 3 4 5]; y= [0 1 2 3 4 5]; A = zeros (1000,2); A (:,2)=y; A (:,1)=x;
Finding the Sum and Difference of Two Matrices. To solve a problem like the one described for the soccer teams, we can use a matrix, which is a rectangular array of numbers. A row in a matrix is a set of numbers that are aligned horizontally. A column in a matrix is a set of numbers that are aligned vertically.
For example, given two matrices A and B, where A is a m x p matrix and B is a p x n matrix, you can multiply them together to get a new m x n matrix C, where each element of C is the dot product of a row in A and a column in B.
To be able to add two matrices, the matrices must be the same size (that is, they must be of the same "order"). This means that they must have the same numbers of rows and columns. So, for instance, a 2 × 3 matrix can be added to another 2 × 3 matrix; it could *not* be added to a 3 × 2 matrix.
