Randomly Shuffle X and Y

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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

KSSV 2020-10-21

Read about randperm.

y = 1:5 ; 
n = length(y) ; 
idx = randperm(n) ;
y(idx)

REN Jain 2020-10-21

I also want to shuffel x in the same manner that y is shuffle.

KSSV 2020-10-21

Follow the same procedure. Just use:

x(idx)

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