Randomly Shuffle X and Y

2 次查看（过去 30 天）
REN Jain
REN Jain 2020-10-21
评论： KSSV 2020-10-21
Hello,
I have 2 arrays,
x which is a 4d array of size 200*300*3*2188,
I have 2188 images (200*300*3) stack up together in x.
and i have y which is the labels for these images of size 2188*3 , 3 is the no of classes.
So I want to randomly shuffel x and y in the same manner so that the labels remain same.
For ex -
x=['a','b','c','d','e']
y=[1,2,3,4,5]
after shuffle
x=['d','a','e',b','c']
y=[4,1,5,2,3]
Thank You

请先登录，再回答此问题。

回答（1 个）

KSSV
KSSV 2020-10-21
Read about randperm.
y = 1:5 ;
n = length(y) ;
idx = randperm(n) ;
y(idx)
  2 个评论
REN Jain
REN Jain 2020-10-21
I also want to shuffel x in the same manner that y is shuffle.
KSSV
KSSV 2020-10-21
Follow the same procedure. Just use:
x(idx)

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by