MATLAB的fliplr 函数介绍，这个函数可以实现从左到右翻转阵列

mytomorrow · 发表于 2020-1-8 10:10

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fliplr
Flip array left to right

Syntax

B = fliplr(A)

8 z$ O+ R- n! `% ]8 RDescription

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。

CCxiaom · 发表于 2020-1-8 19:15

MATLAB的fliplr 函数学习

CCxiaom · 发表于 2020-1-9 19:01

MATLAB的fliplr 函数学习

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MATLAB的fliplr 函数介绍，这个函数可以实现从左到右翻转阵列

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