How can I count how many numbers are different from '-1'?
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi,
Example: Suppose we a have a matrix A
A= [1 -1 0 -1 0 0 -1 0 -1 -1 -1 -1 -1 -1 -1]
How can I count how many numbers are different from '-1'?
2 Kommentare
Shubhashree Bal
am 1 Nov. 2019
Search for how many negative number exists in A. than subtract that from length of array. Or Write a loop for how many positive number exists in array.
Code attached below:
Close all;
clear all;
A= [1 -1 0 -1 0 0 -1 0 -1 -1 -1 -1 -1 -1 -1];
count = 0;
for i = 1: length(A)
if(A(i)>=0)
count = count +1;
end
end
Antworten (2)
Pedro Martinez
am 1 Nov. 2019
Total = sum (A==-1);
1 Kommentar
Walter Roberson
am 5 Nov. 2019
That gives the number of rows of -1 but the user wants the number of columns that are not -1
Siehe auch
Kategorien
Mehr zu Multidimensional Arrays 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!