MATLAB的fliplr 函数介绍，这个函数可以实现从左到右翻转阵列

mytomorrow

6 u' O0 K6 t2 o' E( c! W8 p- t  Ufliplr
Flip array left to right


, v% _1 N6 n4 Y) j* BSyntax
" Z5 T) N  D+ d( R- b- B
B = fliplr(A)
+ T' R7 Q! c, H+ K4 `4 u7 Z, G& @
. B& Q) J1 q. V
, Y% V: T) |. d- `/ J3 qDescription
# i- s" B0 Z# ~! n2 F
8 k( N: b$ {& b+ w2 S/ _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。
( G; Y0 R1 K: X/ q* J$ l
% M! G; L% U, y# i- u+ h# XIf 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.

' v' x( [4 h6 P, R) [4 L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。
( v$ W  F0 M' M
$ g" C, E2 Y; A" W: I% N
Flip Row Vector

Create a row vector.

A = 1:10
$ T1 C) w1 r8 k
# Y8 b7 y2 h1 C5 j9 S. P7 \A = 1×10
4 F) K1 W  n# s& j
( w5 e+ A& z. p# @' R7 K     1     2     3     4     5     6     7     8     9    10
" u) e" c$ F; C* F5 j  K: l5 p, l' A
Use fliplr to flip the elements of A in the horizontal direction.

" W( d! E* z! l3 m1 H2 N3 \) `! |B = fliplr(A)

B = 1×10
) M* D, }, \4 @; E
) g8 m* g4 ~' N3 \/ N2 J3 N    10     9     8     7     6     5     4     3     2     1
0 W+ s- L3 q7 Y5 b- `
The order of the elements in B is reversed compared to A.
8 b: j2 `+ T' }$ D+ I

2 a( S, K& e/ w/ p4 sFlip Cell Array of Characters

' c3 }9 h7 J6 e1 g' ~4 C* ~
0 j! P6 ~% ?7 r$ E. M" dCreate a 3-by-3 cell array of characters.

3 Z  e( w, X8 VA = {'a' 'b' 'c'; 'd' 'e' 'f'; 'g' 'h' 'i'}
: H1 X0 G" v* Y3 F4 v
* e6 R3 C$ a; l/ }' Q. k' XA = 3x3 cell array
+ @# u/ j* b- A) `; [% L- |    {'a'}    {'b'}    {'c'}
5 l5 |# k( n: V, y. m    {'d'}    {'e'}    {'f'}
    {'g'}    {'h'}    {'i'}
' d7 `0 N4 k9 B/ V$ J7 a$ w
Change the order of the columns in the horizontal direction by using fliplr.

, e2 K' V" E. I( w# IB = fliplr(A)
9 D2 k6 f  C! L5 E- i) H$ @, O
) D9 `% b8 E$ K% A+ AB = 3x3 cell array
- F7 I( ]( X0 h6 k. q! V    {'c'}    {'b'}    {'a'}
    {'f'}    {'e'}    {'d'}
& u( O. I1 N. H3 B5 x    {'i'}    {'h'}    {'g'}

' B2 P1 C. m' j9 g5 p9 NThe order of the first and third columns of A is switched in B, while the second column remains unchanged.
0 n; a( c) r) G. R2 m& R
3 ]" s5 E% V$ D/ p
6 Z* B8 `0 F: p0 a/ ]7 c! t# r# |6 [Flip Multidimensional Array

1 K: Y7 M$ G$ h$ LCreate a multidimensional array.

1 k; P3 X; u- `2 T) t' s8 KA = cat(3, [1 2; 3 4], [5 6; 7 8])
6 V# l% v7 \: l" K
A =
A(:,:,1) =
( K3 }% q7 W1 v- g" [
) }& T) x1 j" |: E     1     2
% \4 r8 F; W4 u3 k     3     4
9 M, }5 `/ ]. N

A(:,:,2) =
5 v5 m0 F" C# |, A/ g6 V1 U
+ Q( B9 H' @: Q4 y     5     6
9 p  |# X5 X8 ~6 R9 Q     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.

9 a5 d5 X2 r! [- C4 p' }- P8 N: VB = fliplr(A)

B =
, u/ Q% C- G1 E0 {6 \B(:,:,1) =

1 K# j( p% _( C" C& ]5 @5 \     2     1
, B5 ]" F& b1 `! D) B     4     3
+ j" w, i. J$ D/ [

B(:,:,2) =

8 H0 o% w5 `# l     6     5
     8     7
' L+ }: q7 A% n' q& V; `% a/ W( b% B
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。

/ U6 M! u3 G2 Y2 k: U2 J

CCxiaom

MATLAB的fliplr 函数学习

CCxiaom

MATLAB的fliplr 函数学习