How To Draw Each Character Array In A For Loop In Matlab

How to Discover Index of Chemical element in Array in MATLAB?

In MATLAB, the arrays are used to represent the information and data. You can apply indexing to access the elements of the array. In MATLAB the array indexing starts from 1. To find the alphabetize of the element in the array, you can use the detect() part. Using the find() function you can find the indices and the element from the array. The find() function returns a vector containing the data.

Syntax:

find(X) : Return a vector containing the indices of elements
find(X,n): Render first northward indices of the elements in Ten
find(X,n, Direction): find n indices in X according to the Direction where Direction – 'first' or 'last'
[row,col] = find(): It returns the row and column subscript of element in assortment
[row,col,V] = find(): returns vector Five containing non-nil elements

Now allow'due south see how to notice an index of whatsoever element in an array using the find() function with the assist of examples.

observe(10)

find(X) returns a vector containing thelinear indices of each nonzero element in array X.

Instance 1:

Matlab

array = [i 2 iii 4 v half dozen]

index = observe(array==3)

Output:

Note: If the array contains duplicates and so find(X) role volition render all the indices of that integer.

Example 2:

Matlab

array = [i 2 3 4 5 6 ii 4 2]

alphabetize = find(assortment==2)

Output:

When the array contains duplicate values the find() function will print all the indices of that corresponding chemical element. So if y'all don't want all the indices of that element y'all can use the find(10,n) office.

find(X,n)

Return first due north indices of the elements in X.

Example:

Matlab

array = [1 2 iii 4 five vi 2 4 2]

index = find(assortment==ii,1)

Output:

observe(X,n,Direction)

You can also find the index of the elements from both directions in the array. Both directions hateful from starting and from final by using find(X,n,Direction). This role find n indices in X according to the Direction. The Direction parameter accepts either 'kickoff' or 'last'. If the direction is outset information technology volition return starting time north indices of that corresponding element or if the direction is last it will return the indices by traversing from the terminate of the assortment. By default, the Direction parameter is 'first'.

Instance 1:

Matlab

assortment = [1 2 3 four 5 6 2 4 ii]

index = find(array==two,2, 'first' )

Output:

Instance 2:

Matlab

assortment = [ane ii 3 4 5 6 ii four 2]

index = find(array==2,two, 'concluding' )

Output:

[row,col] = notice(10)

For finding the alphabetize of an chemical element in a iii-Dimensional array you can use the syntax [row,col] = find(x) this volition requite you lot the row and the column in which the element is nowadays.

Example:

Matlab

array = [i 2 3; 4 five half dozen; seven 8 9]

[row,col] = find(array==5)

Output:

[row,col,v] = observe(X)

If you want to find the indices of all the non-zero elements present in the three-dimensional assortment you lot can use [row,col,v] = detect(10) where X is our array. This volition notice all indices of all non-zero elements present in the array and store them into the vector 5.

Example: