Select all eelements equal to a number

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Daniel Boateng
Daniel Boateng 2019-5-14
评论： Daniel Boateng 2019-5-14
I have an array of elements x= [1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 4 4 7 7 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7];
I want to write a script that starts checking the array from the last element and when this is equal to 4 , it breaks and returns the rest of the array say b= [1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 4 4 7 7 4 4 4];
Please any help.
Thank you.

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Adam
Adam 2019-5-14
b = x( 1:find( x == 4, 1, 'last' );

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