What am I doing wrong with the function 'topkrows'
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I am trying to use the function 'topkrows' - https://www.mathworks.com/help/matlab/ref/topkrows.html
Yet I cannot even do the example - when I try to use it I get the error "Undefined function 'topkrows' for input arguments type 'double'.
I also cannot find it when searching which topkrows.
Do I have a corrupted MATLAB download (using R2017a)
Any help would be great!
采纳的回答
Image Analyst
2017-12-6
It was introduced in R2016b (before your version). If you use which, you should see this:
>> which topkrows
C:\Program Files\MATLAB\R2017a\toolbox\matlab\datafun\topkrows.m
If you don't then call the Mathworks for fast and free friendly help because your installation is messed up, or you're not using R2017a like you thought.
更多回答（1 个）
Razvan Carbunescu
2018-4-11
0 个投票
topkrows was initially introduced in R2016b as a function for tall arrays and tables only.
In R2017b the functionality was added for regular matrices and tables.
As a workaround in R2017a should use S = sortrows(A); and then index S(1:k,:);
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