How to find an array in a vector or matrix?
14 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Ehsan Ben
am 14 Apr. 2021
Beantwortet: Ahmed Redissi
am 14 Apr. 2021
I want to find a specific number in a vector, and I am using the following command
[s,t] = find(q_p_d100==qp100max)
But I get the follwoing:
s =
0×1 empty double column vector
t =
0×1 empty double column vector
However, I simply need a raw and column number of the position of the number I'm looking for.
('qp100max' is the maximum number in 'q_p_d100 vector')
0 Kommentare
Akzeptierte Antwort
Jan
am 14 Apr. 2021
Bearbeitet: Jan
am 14 Apr. 2021
The output of FIND shows you, that qp100max is not the maximum value of q_p_d100, but it is not even an element of the vector:
any(q_p_d100 == qp100max) % FALSE
I assume, this is a rounding problem. Try it:
max(q_p_d100) - qp100max
Is this a small value?
To get the position of the maximum value:
[maxV, index] = max(q_p_d100)
If the value is not unique:
allIndex = find(q_p_d100 == maxV)
0 Kommentare
Weitere Antworten (1)
Ahmed Redissi
am 14 Apr. 2021
You can use the function "ismember" to find if an array or a scalar is part of another array. Here is the documentation for it so you can learn how to use it:
0 Kommentare
Siehe auch
Kategorien
Mehr zu Data Distribution Plots 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!