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Find Array Elements That Meet Conditions. This example shows how to filter the elements of an array by applying conditions to the array. For instance, you can examine the even elements in a matrix, find the location of all 0s in a multidimensional array, or replace NaN values in data.
- Find
To find array elements that meet a condition, use find in...
- Creating, Concatenating, and Expanding Matrices
Constructing a Matrix of Data. If you have a specific set of...
- Find
To find array elements that meet a condition, use find in conjunction with a relational expression. For example, find(X<5) returns the linear indices to the elements in X that are less than 5. To directly find the elements in X that satisfy the condition X<5, use X(X<5).
16 sty 2013 · Perhaps you could try creating a 6x6 matrix full of zeros: M = zeros(6) Then just setting part of it to 1:9? M(4:6,4:6) = reshape(1:9, 3, 3)' (The ' symbol means transpose)
Constructing a Matrix of Data. 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.
Create a matrix A with elements 1, 2, 3 in the first row and elements 4, 5, 6 in the second row. Square brackets are used to create a matrix. The elements in a row may be separated either by blanks or commas. Rows may be separated either by semicolons or newlines.
1 paź 2021 · Hi, I have a matrix (6x21) whose values are those found experimentally. Let's call it: expbasket
18 lis 2013 · Accepted Answer: Doug Hull. Hi I will give an example, I have a 10X10 matrix, I want to select the 4th value in the first row, the 7th value in the 4th row and value 5 onwards on the 3rd row, and selecting multiple values from different rows. If anyone can help me.
