Good day to all,
I am facing the problem that I need to quickly find the positions of duplicates of a vector in an array.
Currently I am doing this with a for-statement. For this I run the whole array and compare the rows with my vector. The row has the same length as the vector. This leads to very high run times.
With "ismember" I can check if there are duplicates and also determine the position of the first duplicate. However, the vector can occur several times in the array.
A = [1 3 4] %x,y,z-coordinates - vector
B = [2 3 4; 1 3 4; 5 5 6; 3 4 6; 1 3 4]; %array
The goal here would be to get the indexes 2 and 5.
Can anyone help me with this?