fliplr

Flip array left to right

Syntax

B = fliplr(A)

Description

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

B = fliplr (a) 返回 A, 其列在左右方向 (即关于垂直轴) 反转。

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.

如果 a 是行向量, 则 fliplr (a) 返回与其元素的顺序反转的相同长度的向量。如果 a 是列向量, 则 fliplr (a) 只是返回 a。对于多维数组, fliplr 在由第一个和第二个维度形成的平面上运行。

Flip Row Vector

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.

Flip Cell Array of Characters

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

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

A = 3x3 cell array {'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 array {'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.

Flip Multidimensional Array

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

结果 B 与 A 的大小相同, 但元素的水平顺序被翻转。操作会单独翻转每个页面上的元素。

文章来源: reborn.blog.csdn.net，作者：李锐博恩，版权归原作者所有，如需转载，请联系作者。

原文链接：reborn.blog.csdn.net/article/details/83244916