Comparing 2 vectors: finding closest point
11 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
If I have 2 vectors, say:
x=[1 2 3 4 5];
y=[0 1.1 1.5 1.6 2.4 4.1 4.7 5 5.7];
I want to find the index of the closest match in y, for each index in x. So, for x(1) it would be y(2), for x(2) it would be y(5), etc. Also, it would be nice to have the counts of y values for each x index that occur before the next x index. For example, x(1) it would be 3 (1.1, 1.5, 1.6). x(3) it would be 0.
I was trying to use histc for this, with x specifying the edges, but didn't know if there was a different approach.
0 Kommentare
Antworten (1)
Azzi Abdelmalek
am 12 Mär. 2013
Bearbeitet: Azzi Abdelmalek
am 12 Mär. 2013
x=[1 2 3 4 5];
y=[0 1.1 1.5 1.6 2.4 4.1 4.7 5 5.7];
for k=1:numel(x)
[val,idx]=min(abs(y-x(k)));
xx(k)=y(idx);
end
0 Kommentare
Siehe auch
Kategorien
Mehr zu Matrix Indexing finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!