fliplr

Flip array left to right

Description

example

B = fliplr(A) returns A with its columns flipped in the left-right direction (that is, about a vertical axis).

If A is a row vector, then fliplr(A) returns a vector of the same length with the order of its elements reversed. If A is a column vector, then fliplr(A) simply returns A. For multidimensional arrays, fliplr operates on the planes formed by the first and second dimensions.

Examples

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Create a row vector.

A = 1:10
A = 1×10

1     2     3     4     5     6     7     8     9    10

Use fliplr to flip the elements of A in the horizontal direction.

B = fliplr(A)
B = 1×10

10     9     8     7     6     5     4     3     2     1

The order of the elements in B is reversed compared to A.

Create a 3-by-3 cell array of characters.

A = {'a' 'b' 'c'; 'd' 'e' 'f'; 'g' 'h' 'i'}
A = 3x3 cell
{'a'}    {'b'}    {'c'}
{'d'}    {'e'}    {'f'}
{'g'}    {'h'}    {'i'}

Change the order of the columns in the horizontal direction by using fliplr.

B = fliplr(A)
B = 3x3 cell
{'c'}    {'b'}    {'a'}
{'f'}    {'e'}    {'d'}
{'i'}    {'h'}    {'g'}

The order of the first and third columns of A is switched in B, while the second column remains unchanged.

Create a multidimensional array.

A = cat(3, [1 2; 3 4], [5 6; 7 8])
A =
A(:,:,1) =

1     2
3     4

A(:,:,2) =

5     6
7     8

A is an array of size 2-by-2-by-2.

Flip the elements on each page of A in the horizontal direction.

B = fliplr(A)
B =
B(:,:,1) =

2     1
4     3

B(:,:,2) =

6     5
8     7

The result, B, is the same size as A, but the horizontal order of the elements is flipped. The operation flips the elements on each page independently.

Input Arguments

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Input array, specified as a vector, matrix, multidimensional array, table, or timetable.

Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char | string | struct | cell | table | timetable | categorical | datetime | duration | calendarDuration

Complex Number Support: Yes

Tips

• fliplr(A) is equivalent to flip(A,2).

• Use the flipud function to flip arrays in the vertical direction (that is, about a horizontal axis).

• The flip function can flip arrays in any direction.