I have two arrays:
order = np.array([ 0, 1, 2, 3, 4, 5, 6, 10, 7, 8, 9]) X = np.array([[1,1], [1,2], [2,1], [1,7], [7,3], [8,3], [8,2], [10,5], [10,6], [10,7], [10,1]]
And I’m running the foll)owing code:
m,n = X.shape for i in range(m): print( i," ",X[order[i]])
I get the following result:
0 [1 1] 1 [1 2] 2 [2 1] 3 [1 7] 4 [7 3] 5 [8 3] 6 [8 2] 7 [10 1] 8 [10 1] 9 [10 1] 10 [10 1]
Why are the last elements changed? I don’t see why X is changed by indexing some elements.
edit: added np.array
Advertisement
Answer
import numpy # your data (order and X) m, n = numpy.shape(X) for i in range(m): print(i, " ", X[order[i]])
Output:
0 [1, 1] 1 [1, 2] 2 [2, 1] 3 [1, 7] 4 [7, 3] 5 [8, 3] 6 [8, 2] 7 [10, 1] 8 [10, 5] 9 [10, 6] 10 [10, 7]