Checking for multiple values that are the same in a vector
20 次查看(过去 30 天)
显示 更早的评论
I have a vector of data values and would like to flag up if there are several identical values in a row.
If the data were A=[1,2,3,4,4,4,4,5,6,7,8] I would want it to flag up that there were 4 fours so that I could correct the values.
Is there a way of doing this other than a for loop with checking if A(2)==A(1)
Ideally it would only flag up an error if more than 10 were the same in a row (my real data is a lot larger than A).
Thanks
2 个评论
采纳的回答
Andrei Bobrov
2019-7-10
C = C(:);
d = [1;diff(C) ~= 0];
ii = cumsum(d);
counts = accumarray(ii,1);
k = find(counts >= 10);
lo = ismember(ii,k);
n = sum(lo);
C(lo) = randi([1 3],n,1);
更多回答(1 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Resizing and Reshaping Matrices 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!