picking maximum difference across entries of row vectors, Part 2
6 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I would like to generalize the previous question ( https://www.mathworks.com/matlabcentral/answers/404240-picking-maximum-difference-across-entries-of-row-vectors )
Now A is a table with the first column has the date data. (not a variale)
Please advise how to proceed in this general case.
for each row, take a difference between every possible pair of two elements in the row and returns the maximum difference
In a simpler case where A is a matrix, if A= [1 3 6 7 10], then B=[9].
Antworten (2)
Matt J
am 6 Jun. 2018
result = max(A{:,2:end},[],2)-min(A{:,2:end},[],2)
5 Kommentare
Matt J
am 30 Apr. 2021
Bearbeitet: Matt J
am 30 Apr. 2021
Well, if A is a matrix then max(A,[],2) will give the row-wise maximum of A and similarly for min(). So, if your goal is to obtain a row vector containing the differences between the row-wise max and min of a matrix A, then it would simply be,
p = ( max(A,[],2)-min(A,[],2) ).'
You don't need the indexing A(1:end,:) when A is a matrix. My original answer was intended for when A is a table.
Aakash Deep
am 6 Jun. 2018
Hello,
In order to find out the maximum difference between two elements in a row vector, you can first sort it and then take the difference between the last and the first element.
vec = sort(A);
B = vec(end)-vec(1);
Hope this helps :)
3 Kommentare
Stephen23
am 6 Jun. 2018
Bearbeitet: Stephen23
am 6 Jun. 2018
@alpedhuez: If you post a follow-up question please put a link to the original question. It helps us to keep track of what information or answers you have already been given, and what extra clarifications or data you have given us about the question.
Siehe auch
Kategorien
Mehr zu Logical finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!