MATLAB Answers

Randomly Shuffle X and Y

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REN Jain
REN Jain on 21 Oct 2020
Commented: KSSV on 21 Oct 2020
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

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Answers (1)

KSSV
KSSV on 21 Oct 2020
Read about randperm.
y = 1:5 ;
n = length(y) ;
idx = randperm(n) ;
y(idx)

  2 Comments

REN Jain
REN Jain on 21 Oct 2020
I also want to shuffel x in the same manner that y is shuffle.
KSSV
KSSV on 21 Oct 2020
Follow the same procedure. Just use:
x(idx)

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