finding the max values
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if i have an array and a number k how can I find the biggest k number in the array . but the number should be according there positing in the array : arr= [ 1 9 4 7 38 8] k= 4 the ans must be = [ 9 7 38 8]
回答（3 个）
ANKUR KUMAR
2018-1-20
编辑：ANKUR KUMAR
2018-1-20
arr= [ 1 9 4 7 38 8]
k= 4;
[arr1 b]=sort(arr,'descend');
b1=b(1:k)
arr(sort(b1,'ascend'))
Star Strider
2018-1-20
See if this does what you want:
k = 4;
arr = [ 1 9 4 7 38 8];
Result = arr(arr > k)
Result =
9 7 38 8
1 个评论
Walter Roberson
2018-1-20
The question appears to want k to be the number of values to return.
Walter Roberson
2018-1-20
0 个投票
With R2017b or later use maxk https://www.mathworks.com/help/matlab/ref/maxk.html
To get the elements in vector order use the two output form and ignore the first output and index the original vector at sort() of the second output
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2018-1-20
2018-1-20
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