MATLAB的fliplr 函数介绍，这个函数可以实现从左到右翻转阵列

mytomorrow

fliplr
Flip array left to right

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6 {6 L0 O* O) |& Q9 R# QSyntax
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5 e5 A1 P* d. l: BB = fliplr(A)
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Description
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B = fliplr(A) returns A with its columns flipped in the left-right direction (that is, about a vertical axis).
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B = fliplr (a) 返回 A, 其列在左右方向 (即关于垂直轴) 反转。
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3 E( O0 a( X1 F  Z) a) ?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.

6 |" E. b8 U" h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。


  f7 l" s0 l% i& _; lFlip Row Vector

Create a row vector.
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% x! \, s6 M" m! h4 ]- |A = 1:10

A = 1×10

     1     2     3     4     5     6     7     8     9    10
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Use fliplr to flip the elements of A in the horizontal direction.

( E4 D& R+ g' o) [/ z1 P: [0 fB = fliplr(A)
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3 z, H8 Q  j( R4 fB = 1×10
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    10     9     8     7     6     5     4     3     2     1

+ c' P& H, Z2 A$ P4 p) L3 q& q1 a, FThe order of the elements in B is reversed compared to A.


/ q$ t- I( l) @+ E/ g/ U9 `Flip Cell Array of Characters
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% @" _/ `" a& iCreate a 3-by-3 cell array of characters.

5 @* ]1 t- ?, `0 I8 M' _# `A = {'a' 'b' 'c'; 'd' 'e' 'f'; 'g' 'h' 'i'}
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A = 3x3 cell array
, X* k5 F/ W. i. h    {'a'}    {'b'}    {'c'}
    {'d'}    {'e'}    {'f'}
6 t# e; B& t& C) z9 ~8 Z, S    {'g'}    {'h'}    {'i'}

Change the order of the columns in the horizontal direction by using fliplr.
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1 O6 R( r' i5 G' q$ `& E& BB = fliplr(A)
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B = 3x3 cell array
    {'c'}    {'b'}    {'a'}
# T+ Z: D2 r3 p# [' _" f    {'f'}    {'e'}    {'d'}
* i  b4 D( e: m4 j9 u    {'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

1 p3 k$ i# a- u' nCreate a multidimensional array.
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A = cat(3, [1 2; 3 4], [5 6; 7 8])

A =
A(:,:,1) =
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6 r9 [% f8 |/ p3 q+ k. p     1     2
     3     4

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A(:,:,2) =
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     5     6
     7     8
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0 V9 h/ _3 B8 q% G/ V! ^3 K$ HA is an array of size 2-by-2-by-2.
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Flip the elements on each page of A in the horizontal direction.
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B = fliplr(A)

, ?& |: i, ?3 x+ w5 N: _3 D) dB =
( ?" t6 _) }, `B(:,:,1) =

     2     1
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2 t, ]- Z% x9 m. AB(:,:,2) =

     6     5
& L* d5 e7 l& U' t     8     7
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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。

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CCxiaom

MATLAB的fliplr 函数学习

CCxiaom

MATLAB的fliplr 函数学习